Home / 31,424,862.17-43,386,234.24-21,518,322.61

Finding the Fourth Proportional to 31,424,862.17, 43,386,234.24 and 21,518,322.61

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Solution

The fourth proportional to 31,424,862.17, 43,386,234.24 and 21,518,322.61 is: 29,708,928.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,424,862.17 : 43,386,234.24 = 21,518,322.61 : x
  2. Step 2: Convert to fraction form
    31,424,862.17/43,386,234.24 = 21,518,322.61/x
  3. Step 3: Cross multiply
    31,424,862.17x = 43,386,234.24 × 21,518,322.61
  4. Step 4: Simplify right side
    31,424,862.17x = 933,598,985,101,756.50
  5. Step 5: Solve for x
    x = 933,598,985,101,756.50/31,424,862.17
  6. Step 6: Final answer
    x = 29,708,928.56

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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.