Home / 76,299,078.20-114,448,617.30-72,791,567.60

Finding the Fourth Proportional to 76,299,078.20, 114,448,617.30 and 72,791,567.60

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Solution

The fourth proportional to 76,299,078.20, 114,448,617.30 and 72,791,567.60 is: 109,187,351.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,299,078.20 : 114,448,617.30 = 72,791,567.60 : x
  2. Step 2: Convert to fraction form
    76,299,078.20/114,448,617.30 = 72,791,567.60/x
  3. Step 3: Cross multiply
    76,299,078.20x = 114,448,617.30 × 72,791,567.60
  4. Step 4: Simplify right side
    76,299,078.20x = 8,330,894,262,919,479
  5. Step 5: Solve for x
    x = 8,330,894,262,919,479/76,299,078.20
  6. Step 6: Final answer
    x = 109,187,351.40

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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.