Home / 6,912,000.80-10,368,001.20-3,510,778.40

Finding the Fourth Proportional to 6,912,000.80, 10,368,001.20 and 3,510,778.40

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Solution

The fourth proportional to 6,912,000.80, 10,368,001.20 and 3,510,778.40 is: 5,266,167.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,912,000.80 : 10,368,001.20 = 3,510,778.40 : x
  2. Step 2: Convert to fraction form
    6,912,000.80/10,368,001.20 = 3,510,778.40/x
  3. Step 3: Cross multiply
    6,912,000.80x = 10,368,001.20 × 3,510,778.40
  4. Step 4: Simplify right side
    6,912,000.80x = 36,399,754,664,134.08
  5. Step 5: Solve for x
    x = 36,399,754,664,134.08/6,912,000.80
  6. Step 6: Final answer
    x = 5,266,167.60

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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.