Home / 1,090,142,155.80-1,635,213,233.70-1,005,961,901.40

Finding the Fourth Proportional to 1,090,142,155.80, 1,635,213,233.70 and 1,005,961,901.40

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Solution

The fourth proportional to 1,090,142,155.80, 1,635,213,233.70 and 1,005,961,901.40 is: 1,508,942,852.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,090,142,155.80 : 1,635,213,233.70 = 1,005,961,901.40 : x
  2. Step 2: Convert to fraction form
    1,090,142,155.80/1,635,213,233.70 = 1,005,961,901.40/x
  3. Step 3: Cross multiply
    1,090,142,155.80x = 1,635,213,233.70 × 1,005,961,901.40
  4. Step 4: Simplify right side
    1,090,142,155.80x = 1,644,962,213,767,294,464
  5. Step 5: Solve for x
    x = 1,644,962,213,767,294,464/1,090,142,155.80
  6. Step 6: Final answer
    x = 1,508,942,852.10

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Half scale
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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.