Home / 72,654,797.80-100,264,088.82-39,615,591.16

Finding the Fourth Proportional to 72,654,797.80, 100,264,088.82 and 39,615,591.16

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Solution

The fourth proportional to 72,654,797.80, 100,264,088.82 and 39,615,591.16 is: 54,669,770.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,654,797.80 : 100,264,088.82 = 39,615,591.16 : x
  2. Step 2: Convert to fraction form
    72,654,797.80/100,264,088.82 = 39,615,591.16/x
  3. Step 3: Cross multiply
    72,654,797.80x = 100,264,088.82 × 39,615,591.16
  4. Step 4: Simplify right side
    72,654,797.80x = 3,972,021,150,723,046
  5. Step 5: Solve for x
    x = 3,972,021,150,723,046/72,654,797.80
  6. Step 6: Final answer
    x = 54,669,770.90

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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.