Home / 12,387,527,998.80-18,581,291,998.20-8,463,546,891.60

Finding the Fourth Proportional to 12,387,527,998.80, 18,581,291,998.20 and 8,463,546,891.60

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Solution

The fourth proportional to 12,387,527,998.80, 18,581,291,998.20 and 8,463,546,891.60 is: 12,695,320,337.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,387,527,998.80 : 18,581,291,998.20 = 8,463,546,891.60 : x
  2. Step 2: Convert to fraction form
    12,387,527,998.80/18,581,291,998.20 = 8,463,546,891.60/x
  3. Step 3: Cross multiply
    12,387,527,998.80x = 18,581,291,998.20 × 8,463,546,891.60
  4. Step 4: Simplify right side
    12,387,527,998.80x = 157,263,636,133,277,564,928
  5. Step 5: Solve for x
    x = 157,263,636,133,277,564,928/12,387,527,998.80
  6. Step 6: Final answer
    x = 12,695,320,337.40

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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.