Home / 20,473,600,521.70-30,710,400,782.55-9,987,419,286.10

Finding the Fourth Proportional to 20,473,600,521.70, 30,710,400,782.55 and 9,987,419,286.10

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Solution

The fourth proportional to 20,473,600,521.70, 30,710,400,782.55 and 9,987,419,286.10 is: 14,981,128,929.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,473,600,521.70 : 30,710,400,782.55 = 9,987,419,286.10 : x
  2. Step 2: Convert to fraction form
    20,473,600,521.70/30,710,400,782.55 = 9,987,419,286.10/x
  3. Step 3: Cross multiply
    20,473,600,521.70x = 30,710,400,782.55 × 9,987,419,286.10
  4. Step 4: Simplify right side
    20,473,600,521.70x = 306,717,649,059,500,392,448
  5. Step 5: Solve for x
    x = 306,717,649,059,500,392,448/20,473,600,521.70
  6. Step 6: Final answer
    x = 14,981,128,929.15

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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.