Home / 20,129,148,005.20-30,193,722,007.80-6,879,367,281.40

Finding the Fourth Proportional to 20,129,148,005.20, 30,193,722,007.80 and 6,879,367,281.40

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Solution

The fourth proportional to 20,129,148,005.20, 30,193,722,007.80 and 6,879,367,281.40 is: 10,319,050,922.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,129,148,005.20 : 30,193,722,007.80 = 6,879,367,281.40 : x
  2. Step 2: Convert to fraction form
    20,129,148,005.20/30,193,722,007.80 = 6,879,367,281.40/x
  3. Step 3: Cross multiply
    20,129,148,005.20x = 30,193,722,007.80 × 6,879,367,281.40
  4. Step 4: Simplify right side
    20,129,148,005.20x = 207,713,703,284,146,405,376
  5. Step 5: Solve for x
    x = 207,713,703,284,146,405,376/20,129,148,005.20
  6. Step 6: Final answer
    x = 10,319,050,922.10

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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.