Home / 40,564,713.17-55,979,353.38-21,979,838.93

Finding the Fourth Proportional to 40,564,713.17, 55,979,353.38 and 21,979,838.93

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Solution

The fourth proportional to 40,564,713.17, 55,979,353.38 and 21,979,838.93 is: 30,332,204.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,564,713.17 : 55,979,353.38 = 21,979,838.93 : x
  2. Step 2: Convert to fraction form
    40,564,713.17/55,979,353.38 = 21,979,838.93/x
  3. Step 3: Cross multiply
    40,564,713.17x = 55,979,353.38 × 21,979,838.93
  4. Step 4: Simplify right side
    40,564,713.17x = 1,230,417,170,697,951.25
  5. Step 5: Solve for x
    x = 1,230,417,170,697,951.25/40,564,713.17
  6. Step 6: Final answer
    x = 30,332,204.39

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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.