Home / 20,155,464,820.80-30,233,197,231.20-10,359,944,308.80

Finding the Fourth Proportional to 20,155,464,820.80, 30,233,197,231.20 and 10,359,944,308.80

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Solution

The fourth proportional to 20,155,464,820.80, 30,233,197,231.20 and 10,359,944,308.80 is: 15,539,916,463.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,155,464,820.80 : 30,233,197,231.20 = 10,359,944,308.80 : x
  2. Step 2: Convert to fraction form
    20,155,464,820.80/30,233,197,231.20 = 10,359,944,308.80/x
  3. Step 3: Cross multiply
    20,155,464,820.80x = 30,233,197,231.20 × 10,359,944,308.80
  4. Step 4: Simplify right side
    20,155,464,820.80x = 313,214,239,592,198,373,376
  5. Step 5: Solve for x
    x = 313,214,239,592,198,373,376/20,155,464,820.80
  6. Step 6: Final answer
    x = 15,539,916,463.20

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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.