Home / 140,449,587.96-193,820,715.90-78,570,959.88

Finding the Fourth Proportional to 140,449,587.96, 193,820,715.90 and 78,570,959.88

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Solution

The fourth proportional to 140,449,587.96, 193,820,715.90 and 78,570,959.88 is: 108,428,083.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,449,587.96 : 193,820,715.90 = 78,570,959.88 : x
  2. Step 2: Convert to fraction form
    140,449,587.96/193,820,715.90 = 78,570,959.88/x
  3. Step 3: Cross multiply
    140,449,587.96x = 193,820,715.90 × 78,570,959.88
  4. Step 4: Simplify right side
    140,449,587.96x = 15,228,679,692,891,778
  5. Step 5: Solve for x
    x = 15,228,679,692,891,778/140,449,587.96
  6. Step 6: Final answer
    x = 108,428,083.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.