Home / 64,995,472.97-89,641,453.51-57,138,185.22

Finding the Fourth Proportional to 64,995,472.97, 89,641,453.51 and 57,138,185.22

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Solution

The fourth proportional to 64,995,472.97, 89,641,453.51 and 57,138,185.22 is: 78,804,718.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,995,472.97 : 89,641,453.51 = 57,138,185.22 : x
  2. Step 2: Convert to fraction form
    64,995,472.97/89,641,453.51 = 57,138,185.22/x
  3. Step 3: Cross multiply
    64,995,472.97x = 89,641,453.51 × 57,138,185.22
  4. Step 4: Simplify right side
    64,995,472.97x = 5,121,949,974,044,399
  5. Step 5: Solve for x
    x = 5,121,949,974,044,399/64,995,472.97
  6. Step 6: Final answer
    x = 78,804,718.85

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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.