Home / 21,428,498.64-29,571,545.14-11,639,133.98

Finding the Fourth Proportional to 21,428,498.64, 29,571,545.14 and 11,639,133.98

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Solution

The fourth proportional to 21,428,498.64, 29,571,545.14 and 11,639,133.98 is: 16,062,122.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,428,498.64 : 29,571,545.14 = 11,639,133.98 : x
  2. Step 2: Convert to fraction form
    21,428,498.64/29,571,545.14 = 11,639,133.98/x
  3. Step 3: Cross multiply
    21,428,498.64x = 29,571,545.14 × 11,639,133.98
  4. Step 4: Simplify right side
    21,428,498.64x = 344,187,175,880,077.88
  5. Step 5: Solve for x
    x = 344,187,175,880,077.88/21,428,498.64
  6. Step 6: Final answer
    x = 16,062,122.77

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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.