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Finding the Fourth Proportional to 65,612,752.80, 98,206,552.80 and 57,960,002.40

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Solution

The fourth proportional to 65,612,752.80, 98,206,552.80 and 57,960,002.40 is: 86,752,221.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,612,752.80 : 98,206,552.80 = 57,960,002.40 : x
  2. Step 2: Convert to fraction form
    65,612,752.80/98,206,552.80 = 57,960,002.40/x
  3. Step 3: Cross multiply
    65,612,752.80x = 98,206,552.80 × 57,960,002.40
  4. Step 4: Simplify right side
    65,612,752.80x = 5,692,052,035,983,726
  5. Step 5: Solve for x
    x = 5,692,052,035,983,726/65,612,752.80
  6. Step 6: Final answer
    x = 86,752,221.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.