Home / 131,690,918.01-181,720,222.40-72,942,606.59

Finding the Fourth Proportional to 131,690,918.01, 181,720,222.40 and 72,942,606.59

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Solution

The fourth proportional to 131,690,918.01, 181,720,222.40 and 72,942,606.59 is: 100,653,461.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,690,918.01 : 181,720,222.40 = 72,942,606.59 : x
  2. Step 2: Convert to fraction form
    131,690,918.01/181,720,222.40 = 72,942,606.59/x
  3. Step 3: Cross multiply
    131,690,918.01x = 181,720,222.40 × 72,942,606.59
  4. Step 4: Simplify right side
    131,690,918.01x = 13,255,146,691,970,506
  5. Step 5: Solve for x
    x = 13,255,146,691,970,506/131,690,918.01
  6. Step 6: Final answer
    x = 100,653,461.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.