Home / 20,473,600,515.70-30,710,400,773.55-9,987,419,280.10

Finding the Fourth Proportional to 20,473,600,515.70, 30,710,400,773.55 and 9,987,419,280.10

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Solution

The fourth proportional to 20,473,600,515.70, 30,710,400,773.55 and 9,987,419,280.10 is: 14,981,128,920.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,473,600,515.70 : 30,710,400,773.55 = 9,987,419,280.10 : x
  2. Step 2: Convert to fraction form
    20,473,600,515.70/30,710,400,773.55 = 9,987,419,280.10/x
  3. Step 3: Cross multiply
    20,473,600,515.70x = 30,710,400,773.55 × 9,987,419,280.10
  4. Step 4: Simplify right side
    20,473,600,515.70x = 306,717,648,785,351,245,824
  5. Step 5: Solve for x
    x = 306,717,648,785,351,245,824/20,473,600,515.70
  6. Step 6: Final answer
    x = 14,981,128,920.15

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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.