Home / 12,462,026.60-18,693,039.90-7,654,125.80

Finding the Fourth Proportional to 12,462,026.60, 18,693,039.90 and 7,654,125.80

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Solution

The fourth proportional to 12,462,026.60, 18,693,039.90 and 7,654,125.80 is: 11,481,188.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,462,026.60 : 18,693,039.90 = 7,654,125.80 : x
  2. Step 2: Convert to fraction form
    12,462,026.60/18,693,039.90 = 7,654,125.80/x
  3. Step 3: Cross multiply
    12,462,026.60x = 18,693,039.90 × 7,654,125.80
  4. Step 4: Simplify right side
    12,462,026.60x = 143,078,878,979,019.41
  5. Step 5: Solve for x
    x = 143,078,878,979,019.41/12,462,026.60
  6. Step 6: Final answer
    x = 11,481,188.70

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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.