Home / 5,280,310.30-7,920,465.45-4,217,428.30

Finding the Fourth Proportional to 5,280,310.30, 7,920,465.45 and 4,217,428.30

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Solution

The fourth proportional to 5,280,310.30, 7,920,465.45 and 4,217,428.30 is: 6,326,142.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,280,310.30 : 7,920,465.45 = 4,217,428.30 : x
  2. Step 2: Convert to fraction form
    5,280,310.30/7,920,465.45 = 4,217,428.30/x
  3. Step 3: Cross multiply
    5,280,310.30x = 7,920,465.45 × 4,217,428.30
  4. Step 4: Simplify right side
    5,280,310.30x = 33,403,995,138,002.23
  5. Step 5: Solve for x
    x = 33,403,995,138,002.23/5,280,310.30
  6. Step 6: Final answer
    x = 6,326,142.45

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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.