Home / 99,575,721.28-149,278,387.84-38,208,918.72

Finding the Fourth Proportional to 99,575,721.28, 149,278,387.84 and 38,208,918.72

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Solution

The fourth proportional to 99,575,721.28, 149,278,387.84 and 38,208,918.72 is: 57,280,687.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,575,721.28 : 149,278,387.84 = 38,208,918.72 : x
  2. Step 2: Convert to fraction form
    99,575,721.28/149,278,387.84 = 38,208,918.72/x
  3. Step 3: Cross multiply
    99,575,721.28x = 149,278,387.84 × 38,208,918.72
  4. Step 4: Simplify right side
    99,575,721.28x = 5,703,765,787,631,196
  5. Step 5: Solve for x
    x = 5,703,765,787,631,196/99,575,721.28
  6. Step 6: Final answer
    x = 57,280,687.64

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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.