Home / 79,211,766.80-118,817,650.20-52,001,987.60

Finding the Fourth Proportional to 79,211,766.80, 118,817,650.20 and 52,001,987.60

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Solution

The fourth proportional to 79,211,766.80, 118,817,650.20 and 52,001,987.60 is: 78,002,981.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,211,766.80 : 118,817,650.20 = 52,001,987.60 : x
  2. Step 2: Convert to fraction form
    79,211,766.80/118,817,650.20 = 52,001,987.60/x
  3. Step 3: Cross multiply
    79,211,766.80x = 118,817,650.20 × 52,001,987.60
  4. Step 4: Simplify right side
    79,211,766.80x = 6,178,753,972,361,538
  5. Step 5: Solve for x
    x = 6,178,753,972,361,538/79,211,766.80
  6. Step 6: Final answer
    x = 78,002,981.40

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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.