Home / 1,118,355,387.40-1,677,533,081.10-634,625,979.40

Finding the Fourth Proportional to 1,118,355,387.40, 1,677,533,081.10 and 634,625,979.40

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Solution

The fourth proportional to 1,118,355,387.40, 1,677,533,081.10 and 634,625,979.40 is: 951,938,969.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,118,355,387.40 : 1,677,533,081.10 = 634,625,979.40 : x
  2. Step 2: Convert to fraction form
    1,118,355,387.40/1,677,533,081.10 = 634,625,979.40/x
  3. Step 3: Cross multiply
    1,118,355,387.40x = 1,677,533,081.10 × 634,625,979.40
  4. Step 4: Simplify right side
    1,118,355,387.40x = 1,064,606,074,568,987,008
  5. Step 5: Solve for x
    x = 1,064,606,074,568,987,008/1,118,355,387.40
  6. Step 6: Final answer
    x = 951,938,969.10

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Half scale
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Double scale
Find fourth proportional to 1,118,355,388.40, 1,677,533,082.60 and 634,625,980.40
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.