Home / 79,867,970.81-119,815,200.11-28,039,121.27

Finding the Fourth Proportional to 79,867,970.81, 119,815,200.11 and 28,039,121.27

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Solution

The fourth proportional to 79,867,970.81, 119,815,200.11 and 28,039,121.27 is: 42,063,331.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,867,970.81 : 119,815,200.11 = 28,039,121.27 : x
  2. Step 2: Convert to fraction form
    79,867,970.81/119,815,200.11 = 28,039,121.27/x
  3. Step 3: Cross multiply
    79,867,970.81x = 119,815,200.11 × 28,039,121.27
  4. Step 4: Simplify right side
    79,867,970.81x = 3,359,512,925,344,629
  5. Step 5: Solve for x
    x = 3,359,512,925,344,629/79,867,970.81
  6. Step 6: Final answer
    x = 42,063,331.41

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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.