Home / 55,539,732.24-76,642,711.20-30,421,439.28

Finding the Fourth Proportional to 55,539,732.24, 76,642,711.20 and 30,421,439.28

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Solution

The fourth proportional to 55,539,732.24, 76,642,711.20 and 30,421,439.28 is: 41,980,425.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,539,732.24 : 76,642,711.20 = 30,421,439.28 : x
  2. Step 2: Convert to fraction form
    55,539,732.24/76,642,711.20 = 30,421,439.28/x
  3. Step 3: Cross multiply
    55,539,732.24x = 76,642,711.20 × 30,421,439.28
  4. Step 4: Simplify right side
    55,539,732.24x = 2,331,581,585,025,376
  5. Step 5: Solve for x
    x = 2,331,581,585,025,376/55,539,732.24
  6. Step 6: Final answer
    x = 41,980,425.38

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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.