Home / 6,474,780.80-9,712,171.20-5,215,068.80

Finding the Fourth Proportional to 6,474,780.80, 9,712,171.20 and 5,215,068.80

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Solution

The fourth proportional to 6,474,780.80, 9,712,171.20 and 5,215,068.80 is: 7,822,603.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,474,780.80 : 9,712,171.20 = 5,215,068.80 : x
  2. Step 2: Convert to fraction form
    6,474,780.80/9,712,171.20 = 5,215,068.80/x
  3. Step 3: Cross multiply
    6,474,780.80x = 9,712,171.20 × 5,215,068.80
  4. Step 4: Simplify right side
    6,474,780.80x = 50,649,641,005,378.55
  5. Step 5: Solve for x
    x = 50,649,641,005,378.55/6,474,780.80
  6. Step 6: Final answer
    x = 7,822,603.20

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Double scale
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Similar ratio
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1.5x scale

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.