Home / 8,078,555.40-12,117,833.10-5,527,638.60

Finding the Fourth Proportional to 8,078,555.40, 12,117,833.10 and 5,527,638.60

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Solution

The fourth proportional to 8,078,555.40, 12,117,833.10 and 5,527,638.60 is: 8,291,457.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,078,555.40 : 12,117,833.10 = 5,527,638.60 : x
  2. Step 2: Convert to fraction form
    8,078,555.40/12,117,833.10 = 5,527,638.60/x
  3. Step 3: Cross multiply
    8,078,555.40x = 12,117,833.10 × 5,527,638.60
  4. Step 4: Simplify right side
    8,078,555.40x = 66,983,001,991,917.66
  5. Step 5: Solve for x
    x = 66,983,001,991,917.66/8,078,555.40
  6. Step 6: Final answer
    x = 8,291,457.90

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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.