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Finding the Fourth Proportional to 9,072,225.30, 13,608,337.95 and 8,347,890.90

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Solution

The fourth proportional to 9,072,225.30, 13,608,337.95 and 8,347,890.90 is: 12,521,836.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,072,225.30 : 13,608,337.95 = 8,347,890.90 : x
  2. Step 2: Convert to fraction form
    9,072,225.30/13,608,337.95 = 8,347,890.90/x
  3. Step 3: Cross multiply
    9,072,225.30x = 13,608,337.95 × 8,347,890.90
  4. Step 4: Simplify right side
    9,072,225.30x = 113,600,920,536,929.66
  5. Step 5: Solve for x
    x = 113,600,920,536,929.66/9,072,225.30
  6. Step 6: Final answer
    x = 12,521,836.35

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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.