Home / 15,540,269,909.70-23,310,404,864.55-12,819,291,989.70

Finding the Fourth Proportional to 15,540,269,909.70, 23,310,404,864.55 and 12,819,291,989.70

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Solution

The fourth proportional to 15,540,269,909.70, 23,310,404,864.55 and 12,819,291,989.70 is: 19,228,937,984.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,540,269,909.70 : 23,310,404,864.55 = 12,819,291,989.70 : x
  2. Step 2: Convert to fraction form
    15,540,269,909.70/23,310,404,864.55 = 12,819,291,989.70/x
  3. Step 3: Cross multiply
    15,540,269,909.70x = 23,310,404,864.55 × 12,819,291,989.70
  4. Step 4: Simplify right side
    15,540,269,909.70x = 298,822,886,356,789,755,904
  5. Step 5: Solve for x
    x = 298,822,886,356,789,755,904/15,540,269,909.70
  6. Step 6: Final answer
    x = 19,228,937,984.55

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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.