Home / 11,878,318.76-16,392,079.90-6,445,810.76

Finding the Fourth Proportional to 11,878,318.76, 16,392,079.90 and 6,445,810.76

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Solution

The fourth proportional to 11,878,318.76, 16,392,079.90 and 6,445,810.76 is: 8,895,218.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,878,318.76 : 16,392,079.90 = 6,445,810.76 : x
  2. Step 2: Convert to fraction form
    11,878,318.76/16,392,079.90 = 6,445,810.76/x
  3. Step 3: Cross multiply
    11,878,318.76x = 16,392,079.90 × 6,445,810.76
  4. Step 4: Simplify right side
    11,878,318.76x = 105,660,244,998,199.72
  5. Step 5: Solve for x
    x = 105,660,244,998,199.72/11,878,318.76
  6. Step 6: Final answer
    x = 8,895,218.85

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.