Home / 20,473,600,688.20-30,710,401,032.30-9,987,419,452.60

Finding the Fourth Proportional to 20,473,600,688.20, 30,710,401,032.30 and 9,987,419,452.60

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Solution

The fourth proportional to 20,473,600,688.20, 30,710,401,032.30 and 9,987,419,452.60 is: 14,981,129,178.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,473,600,688.20 : 30,710,401,032.30 = 9,987,419,452.60 : x
  2. Step 2: Convert to fraction form
    20,473,600,688.20/30,710,401,032.30 = 9,987,419,452.60/x
  3. Step 3: Cross multiply
    20,473,600,688.20x = 30,710,401,032.30 × 9,987,419,452.60
  4. Step 4: Simplify right side
    20,473,600,688.20x = 306,717,656,667,140,128,768
  5. Step 5: Solve for x
    x = 306,717,656,667,140,128,768/20,473,600,688.20
  6. Step 6: Final answer
    x = 14,981,129,178.90

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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.