Home / 8,352,045.40-12,528,068.10-5,146,778.20

Finding the Fourth Proportional to 8,352,045.40, 12,528,068.10 and 5,146,778.20

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Solution

The fourth proportional to 8,352,045.40, 12,528,068.10 and 5,146,778.20 is: 7,720,167.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,352,045.40 : 12,528,068.10 = 5,146,778.20 : x
  2. Step 2: Convert to fraction form
    8,352,045.40/12,528,068.10 = 5,146,778.20/x
  3. Step 3: Cross multiply
    8,352,045.40x = 12,528,068.10 × 5,146,778.20
  4. Step 4: Simplify right side
    8,352,045.40x = 64,479,187,785,195.42
  5. Step 5: Solve for x
    x = 64,479,187,785,195.42/8,352,045.40
  6. Step 6: Final answer
    x = 7,720,167.30

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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.