Home / 72,215,750.20-99,631,581.90-47,449,276.06

Finding the Fourth Proportional to 72,215,750.20, 99,631,581.90 and 47,449,276.06

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Solution

The fourth proportional to 72,215,750.20, 99,631,581.90 and 47,449,276.06 is: 65,462,816.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,215,750.20 : 99,631,581.90 = 47,449,276.06 : x
  2. Step 2: Convert to fraction form
    72,215,750.20/99,631,581.90 = 47,449,276.06/x
  3. Step 3: Cross multiply
    72,215,750.20x = 99,631,581.90 × 47,449,276.06
  4. Step 4: Simplify right side
    72,215,750.20x = 4,727,446,433,867,600
  5. Step 5: Solve for x
    x = 4,727,446,433,867,600/72,215,750.20
  6. Step 6: Final answer
    x = 65,462,816.92

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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.