Home / 1,284,136,689.40-1,926,205,034.10-314,788,305.40

Finding the Fourth Proportional to 1,284,136,689.40, 1,926,205,034.10 and 314,788,305.40

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Solution

The fourth proportional to 1,284,136,689.40, 1,926,205,034.10 and 314,788,305.40 is: 472,182,458.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,284,136,689.40 : 1,926,205,034.10 = 314,788,305.40 : x
  2. Step 2: Convert to fraction form
    1,284,136,689.40/1,926,205,034.10 = 314,788,305.40/x
  3. Step 3: Cross multiply
    1,284,136,689.40x = 1,926,205,034.10 × 314,788,305.40
  4. Step 4: Simplify right side
    1,284,136,689.40x = 606,346,818,537,288,192
  5. Step 5: Solve for x
    x = 606,346,818,537,288,192/1,284,136,689.40
  6. Step 6: Final answer
    x = 472,182,458.10

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Double scale
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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.