Home / 140,768,000.80-211,152,001.20-138,500,519.20

Finding the Fourth Proportional to 140,768,000.80, 211,152,001.20 and 138,500,519.20

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Solution

The fourth proportional to 140,768,000.80, 211,152,001.20 and 138,500,519.20 is: 207,750,778.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,768,000.80 : 211,152,001.20 = 138,500,519.20 : x
  2. Step 2: Convert to fraction form
    140,768,000.80/211,152,001.20 = 138,500,519.20/x
  3. Step 3: Cross multiply
    140,768,000.80x = 211,152,001.20 × 138,500,519.20
  4. Step 4: Simplify right side
    140,768,000.80x = 29,244,661,796,319,020
  5. Step 5: Solve for x
    x = 29,244,661,796,319,020/140,768,000.80
  6. Step 6: Final answer
    x = 207,750,778.80

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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.