Home / 129,948,485.54-179,329,035.39-71,211,280.46

Finding the Fourth Proportional to 129,948,485.54, 179,329,035.39 and 71,211,280.46

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Solution

The fourth proportional to 129,948,485.54, 179,329,035.39 and 71,211,280.46 is: 98,271,635.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,948,485.54 : 179,329,035.39 = 71,211,280.46 : x
  2. Step 2: Convert to fraction form
    129,948,485.54/179,329,035.39 = 71,211,280.46/x
  3. Step 3: Cross multiply
    129,948,485.54x = 179,329,035.39 × 71,211,280.46
  4. Step 4: Simplify right side
    129,948,485.54x = 12,770,250,233,778,554
  5. Step 5: Solve for x
    x = 12,770,250,233,778,554/129,948,485.54
  6. Step 6: Final answer
    x = 98,271,635.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.