Home / 260,736,823.20-391,105,234.80-78,984,001.20

Finding the Fourth Proportional to 260,736,823.20, 391,105,234.80 and 78,984,001.20

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Solution

The fourth proportional to 260,736,823.20, 391,105,234.80 and 78,984,001.20 is: 118,476,001.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,736,823.20 : 391,105,234.80 = 78,984,001.20 : x
  2. Step 2: Convert to fraction form
    260,736,823.20/391,105,234.80 = 78,984,001.20/x
  3. Step 3: Cross multiply
    260,736,823.20x = 391,105,234.80 × 78,984,001.20
  4. Step 4: Simplify right side
    260,736,823.20x = 30,891,056,334,769,484
  5. Step 5: Solve for x
    x = 30,891,056,334,769,484/260,736,823.20
  6. Step 6: Final answer
    x = 118,476,001.80

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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.