Home / 80,909,277.10-121,363,915.65-79,565,584.30

Finding the Fourth Proportional to 80,909,277.10, 121,363,915.65 and 79,565,584.30

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Solution

The fourth proportional to 80,909,277.10, 121,363,915.65 and 79,565,584.30 is: 119,348,376.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,909,277.10 : 121,363,915.65 = 79,565,584.30 : x
  2. Step 2: Convert to fraction form
    80,909,277.10/121,363,915.65 = 79,565,584.30/x
  3. Step 3: Cross multiply
    80,909,277.10x = 121,363,915.65 × 79,565,584.30
  4. Step 4: Simplify right side
    80,909,277.10x = 9,656,390,861,628,164
  5. Step 5: Solve for x
    x = 9,656,390,861,628,164/80,909,277.10
  6. Step 6: Final answer
    x = 119,348,376.45

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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.