Home / 87,671,829.65-120,888,116.82-65,574,512.87

Finding the Fourth Proportional to 87,671,829.65, 120,888,116.82 and 65,574,512.87

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Solution

The fourth proportional to 87,671,829.65, 120,888,116.82 and 65,574,512.87 is: 90,418,774.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,671,829.65 : 120,888,116.82 = 65,574,512.87 : x
  2. Step 2: Convert to fraction form
    87,671,829.65/120,888,116.82 = 65,574,512.87/x
  3. Step 3: Cross multiply
    87,671,829.65x = 120,888,116.82 × 65,574,512.87
  4. Step 4: Simplify right side
    87,671,829.65x = 7,927,179,371,638,713
  5. Step 5: Solve for x
    x = 7,927,179,371,638,713/87,671,829.65
  6. Step 6: Final answer
    x = 90,418,774.24

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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.