Home / 39,896,411.52-55,057,299.84-21,561,653.76

Finding the Fourth Proportional to 39,896,411.52, 55,057,299.84 and 21,561,653.76

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Solution

The fourth proportional to 39,896,411.52, 55,057,299.84 and 21,561,653.76 is: 29,755,218.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,896,411.52 : 55,057,299.84 = 21,561,653.76 : x
  2. Step 2: Convert to fraction form
    39,896,411.52/55,057,299.84 = 21,561,653.76/x
  3. Step 3: Cross multiply
    39,896,411.52x = 55,057,299.84 × 21,561,653.76
  4. Step 4: Simplify right side
    39,896,411.52x = 1,187,126,436,110,583.50
  5. Step 5: Solve for x
    x = 1,187,126,436,110,583.50/39,896,411.52
  6. Step 6: Final answer
    x = 29,755,218.35

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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.