Home / 72,256,351.56-99,713,863.13-39,216,601.72

Finding the Fourth Proportional to 72,256,351.56, 99,713,863.13 and 39,216,601.72

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Solution

The fourth proportional to 72,256,351.56, 99,713,863.13 and 39,216,601.72 is: 54,118,963.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,256,351.56 : 99,713,863.13 = 39,216,601.72 : x
  2. Step 2: Convert to fraction form
    72,256,351.56/99,713,863.13 = 39,216,601.72/x
  3. Step 3: Cross multiply
    72,256,351.56x = 99,713,863.13 × 39,216,601.72
  4. Step 4: Simplify right side
    72,256,351.56x = 3,910,438,856,331,802.50
  5. Step 5: Solve for x
    x = 3,910,438,856,331,802.50/72,256,351.56
  6. Step 6: Final answer
    x = 54,118,963.55

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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.