Home / 102,775,979.28-141,839,820.92-56,375,201.20

Finding the Fourth Proportional to 102,775,979.28, 141,839,820.92 and 56,375,201.20

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Solution

The fourth proportional to 102,775,979.28, 141,839,820.92 and 56,375,201.20 is: 77,802,697.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,775,979.28 : 141,839,820.92 = 56,375,201.20 : x
  2. Step 2: Convert to fraction form
    102,775,979.28/141,839,820.92 = 56,375,201.20/x
  3. Step 3: Cross multiply
    102,775,979.28x = 141,839,820.92 × 56,375,201.20
  4. Step 4: Simplify right side
    102,775,979.28x = 7,996,248,442,536,969
  5. Step 5: Solve for x
    x = 7,996,248,442,536,969/102,775,979.28
  6. Step 6: Final answer
    x = 77,802,697.66

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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.