Home / 5,172,853.20-7,759,279.89-1,578,638.58

Finding the Fourth Proportional to 5,172,853.20, 7,759,279.89 and 1,578,638.58

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Solution

The fourth proportional to 5,172,853.20, 7,759,279.89 and 1,578,638.58 is: 2,367,957.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,172,853.20 : 7,759,279.89 = 1,578,638.58 : x
  2. Step 2: Convert to fraction form
    5,172,853.20/7,759,279.89 = 1,578,638.58/x
  3. Step 3: Cross multiply
    5,172,853.20x = 7,759,279.89 × 1,578,638.58
  4. Step 4: Simplify right side
    5,172,853.20x = 12,249,098,587,372.16
  5. Step 5: Solve for x
    x = 12,249,098,587,372.16/5,172,853.20
  6. Step 6: Final answer
    x = 2,367,957.90

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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.