Home / 9,287,154.32-12,815,569.86-5,211,986

Finding the Fourth Proportional to 9,287,154.32, 12,815,569.86 and 5,211,986

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Solution

The fourth proportional to 9,287,154.32, 12,815,569.86 and 5,211,986 is: 7,192,146.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,287,154.32 : 12,815,569.86 = 5,211,986 : x
  2. Step 2: Convert to fraction form
    9,287,154.32/12,815,569.86 = 5,211,986/x
  3. Step 3: Cross multiply
    9,287,154.32x = 12,815,569.86 × 5,211,986
  4. Step 4: Simplify right side
    9,287,154.32x = 66,794,570,692,341.95
  5. Step 5: Solve for x
    x = 66,794,570,692,341.95/9,287,154.32
  6. Step 6: Final answer
    x = 7,192,146.10

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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.