Home / 138,175,685.40-207,335,259.89-56,354,591.64

Finding the Fourth Proportional to 138,175,685.40, 207,335,259.89 and 56,354,591.64

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Solution

The fourth proportional to 138,175,685.40, 207,335,259.89 and 56,354,591.64 is: 84,561,143.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,175,685.40 : 207,335,259.89 = 56,354,591.64 : x
  2. Step 2: Convert to fraction form
    138,175,685.40/207,335,259.89 = 56,354,591.64/x
  3. Step 3: Cross multiply
    138,175,685.40x = 207,335,259.89 × 56,354,591.64
  4. Step 4: Simplify right side
    138,175,685.40x = 11,684,293,903,392,448
  5. Step 5: Solve for x
    x = 11,684,293,903,392,448/138,175,685.40
  6. Step 6: Final answer
    x = 84,561,143.08

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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.