Home / 9,287,140.32-12,815,550.54-5,211,972

Finding the Fourth Proportional to 9,287,140.32, 12,815,550.54 and 5,211,972

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Solution

The fourth proportional to 9,287,140.32, 12,815,550.54 and 5,211,972 is: 7,192,126.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,287,140.32 : 12,815,550.54 = 5,211,972 : x
  2. Step 2: Convert to fraction form
    9,287,140.32/12,815,550.54 = 5,211,972/x
  3. Step 3: Cross multiply
    9,287,140.32x = 12,815,550.54 × 5,211,972
  4. Step 4: Simplify right side
    9,287,140.32x = 66,794,290,579,064.88
  5. Step 5: Solve for x
    x = 66,794,290,579,064.88/9,287,140.32
  6. Step 6: Final answer
    x = 7,192,126.78

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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.