Home / 2,140,146,138,023.80-3,210,520,768,747.20-687,521,711,218.20

Finding the Fourth Proportional to 2,140,146,138,023.80, 3,210,520,768,747.20 and 687,521,711,218.20

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Solution

The fourth proportional to 2,140,146,138,023.80, 3,210,520,768,747.20 and 687,521,711,218.20 is: 1,031,379,443,493.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,140,146,138,023.80 : 3,210,520,768,747.20 = 687,521,711,218.20 : x
  2. Step 2: Convert to fraction form
    2,140,146,138,023.80/3,210,520,768,747.20 = 687,521,711,218.20/x
  3. Step 3: Cross multiply
    2,140,146,138,023.80x = 3,210,520,768,747.20 × 687,521,711,218.20
  4. Step 4: Simplify right side
    2,140,146,138,023.80x = 2,207,302,732,830,645,787,033,600
  5. Step 5: Solve for x
    x = 2,207,302,732,830,645,787,033,600/2,140,146,138,023.80
  6. Step 6: Final answer
    x = 1,031,379,443,493.92

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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.