Home / 13,721,935.28-18,935,831.40-7,526,894

Finding the Fourth Proportional to 13,721,935.28, 18,935,831.40 and 7,526,894

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Solution

The fourth proportional to 13,721,935.28, 18,935,831.40 and 7,526,894 is: 10,386,872.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,721,935.28 : 18,935,831.40 = 7,526,894 : x
  2. Step 2: Convert to fraction form
    13,721,935.28/18,935,831.40 = 7,526,894/x
  3. Step 3: Cross multiply
    13,721,935.28x = 18,935,831.40 × 7,526,894
  4. Step 4: Simplify right side
    13,721,935.28x = 142,527,995,749,671.59
  5. Step 5: Solve for x
    x = 142,527,995,749,671.59/13,721,935.28
  6. Step 6: Final answer
    x = 10,386,872.76

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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.