Home / 20,129,148,002.70-30,193,722,004.05-6,879,367,278.90

Finding the Fourth Proportional to 20,129,148,002.70, 30,193,722,004.05 and 6,879,367,278.90

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Solution

The fourth proportional to 20,129,148,002.70, 30,193,722,004.05 and 6,879,367,278.90 is: 10,319,050,918.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,129,148,002.70 : 30,193,722,004.05 = 6,879,367,278.90 : x
  2. Step 2: Convert to fraction form
    20,129,148,002.70/30,193,722,004.05 = 6,879,367,278.90/x
  3. Step 3: Cross multiply
    20,129,148,002.70x = 30,193,722,004.05 × 6,879,367,278.90
  4. Step 4: Simplify right side
    20,129,148,002.70x = 207,713,703,182,864,482,304
  5. Step 5: Solve for x
    x = 207,713,703,182,864,482,304/20,129,148,002.70
  6. Step 6: Final answer
    x = 10,319,050,918.35

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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.