Home / 20,473,600,528.20-30,710,400,792.30-9,987,419,292.60

Finding the Fourth Proportional to 20,473,600,528.20, 30,710,400,792.30 and 9,987,419,292.60

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Solution

The fourth proportional to 20,473,600,528.20, 30,710,400,792.30 and 9,987,419,292.60 is: 14,981,128,938.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,473,600,528.20 : 30,710,400,792.30 = 9,987,419,292.60 : x
  2. Step 2: Convert to fraction form
    20,473,600,528.20/30,710,400,792.30 = 9,987,419,292.60/x
  3. Step 3: Cross multiply
    20,473,600,528.20x = 30,710,400,792.30 × 9,987,419,292.60
  4. Step 4: Simplify right side
    20,473,600,528.20x = 306,717,649,356,495,323,136
  5. Step 5: Solve for x
    x = 306,717,649,356,495,323,136/20,473,600,528.20
  6. Step 6: Final answer
    x = 14,981,128,938.90

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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.