Home / 8,319,101.60-12,478,652.40-8,193,130.40

Finding the Fourth Proportional to 8,319,101.60, 12,478,652.40 and 8,193,130.40

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Solution

The fourth proportional to 8,319,101.60, 12,478,652.40 and 8,193,130.40 is: 12,289,695.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,319,101.60 : 12,478,652.40 = 8,193,130.40 : x
  2. Step 2: Convert to fraction form
    8,319,101.60/12,478,652.40 = 8,193,130.40/x
  3. Step 3: Cross multiply
    8,319,101.60x = 12,478,652.40 × 8,193,130.40
  4. Step 4: Simplify right side
    8,319,101.60x = 102,239,226,329,472.97
  5. Step 5: Solve for x
    x = 102,239,226,329,472.97/8,319,101.60
  6. Step 6: Final answer
    x = 12,289,695.60

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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.