Home / 72,005,997.59-107,996,824.35-20,178,681.02

Finding the Fourth Proportional to 72,005,997.59, 107,996,824.35 and 20,178,681.02

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Solution

The fourth proportional to 72,005,997.59, 107,996,824.35 and 20,178,681.02 is: 30,264,610.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,005,997.59 : 107,996,824.35 = 20,178,681.02 : x
  2. Step 2: Convert to fraction form
    72,005,997.59/107,996,824.35 = 20,178,681.02/x
  3. Step 3: Cross multiply
    72,005,997.59x = 107,996,824.35 × 20,178,681.02
  4. Step 4: Simplify right side
    72,005,997.59x = 2,179,233,469,090,741.25
  5. Step 5: Solve for x
    x = 2,179,233,469,090,741.25/72,005,997.59
  6. Step 6: Final answer
    x = 30,264,610.48

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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.