Home / 189,440,965.20-284,037,031.80-74,356,165.20

Finding the Fourth Proportional to 189,440,965.20, 284,037,031.80 and 74,356,165.20

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Solution

The fourth proportional to 189,440,965.20, 284,037,031.80 and 74,356,165.20 is: 111,485,414.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,440,965.20 : 284,037,031.80 = 74,356,165.20 : x
  2. Step 2: Convert to fraction form
    189,440,965.20/284,037,031.80 = 74,356,165.20/x
  3. Step 3: Cross multiply
    189,440,965.20x = 284,037,031.80 × 74,356,165.20
  4. Step 4: Simplify right side
    189,440,965.20x = 21,119,904,459,438,456
  5. Step 5: Solve for x
    x = 21,119,904,459,438,456/189,440,965.20
  6. Step 6: Final answer
    x = 111,485,414.13

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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.