Home / 138,329,887.10-207,494,830.65-42,591,775.10

Finding the Fourth Proportional to 138,329,887.10, 207,494,830.65 and 42,591,775.10

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Solution

The fourth proportional to 138,329,887.10, 207,494,830.65 and 42,591,775.10 is: 63,887,662.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,329,887.10 : 207,494,830.65 = 42,591,775.10 : x
  2. Step 2: Convert to fraction form
    138,329,887.10/207,494,830.65 = 42,591,775.10/x
  3. Step 3: Cross multiply
    138,329,887.10x = 207,494,830.65 × 42,591,775.10
  4. Step 4: Simplify right side
    138,329,887.10x = 8,837,573,161,457,387
  5. Step 5: Solve for x
    x = 8,837,573,161,457,387/138,329,887.10
  6. Step 6: Final answer
    x = 63,887,662.65

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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.