Home / 20,155,413,342.30-30,233,120,013.45-15,946,967,492.70

Finding the Fourth Proportional to 20,155,413,342.30, 30,233,120,013.45 and 15,946,967,492.70

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Solution

The fourth proportional to 20,155,413,342.30, 30,233,120,013.45 and 15,946,967,492.70 is: 23,920,451,239.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,155,413,342.30 : 30,233,120,013.45 = 15,946,967,492.70 : x
  2. Step 2: Convert to fraction form
    20,155,413,342.30/30,233,120,013.45 = 15,946,967,492.70/x
  3. Step 3: Cross multiply
    20,155,413,342.30x = 30,233,120,013.45 × 15,946,967,492.70
  4. Step 4: Simplify right side
    20,155,413,342.30x = 482,126,582,057,385,000,960
  5. Step 5: Solve for x
    x = 482,126,582,057,385,000,960/20,155,413,342.30
  6. Step 6: Final answer
    x = 23,920,451,239.05

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Double scale
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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.