Home / 141,777,293.40-212,665,940.10-81,143,155.80

Finding the Fourth Proportional to 141,777,293.40, 212,665,940.10 and 81,143,155.80

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Solution

The fourth proportional to 141,777,293.40, 212,665,940.10 and 81,143,155.80 is: 121,714,733.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,777,293.40 : 212,665,940.10 = 81,143,155.80 : x
  2. Step 2: Convert to fraction form
    141,777,293.40/212,665,940.10 = 81,143,155.80/x
  3. Step 3: Cross multiply
    141,777,293.40x = 212,665,940.10 × 81,143,155.80
  4. Step 4: Simplify right side
    141,777,293.40x = 17,256,385,510,887,766
  5. Step 5: Solve for x
    x = 17,256,385,510,887,766/141,777,293.40
  6. Step 6: Final answer
    x = 121,714,733.70

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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.