Home / 84,102,041.52-126,152,532.92-45,258,790.48

Finding the Fourth Proportional to 84,102,041.52, 126,152,532.92 and 45,258,790.48

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Solution

The fourth proportional to 84,102,041.52, 126,152,532.92 and 45,258,790.48 is: 67,887,900.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,102,041.52 : 126,152,532.92 = 45,258,790.48 : x
  2. Step 2: Convert to fraction form
    84,102,041.52/126,152,532.92 = 45,258,790.48/x
  3. Step 3: Cross multiply
    84,102,041.52x = 126,152,532.92 × 45,258,790.48
  4. Step 4: Simplify right side
    84,102,041.52x = 5,709,511,055,947,582
  5. Step 5: Solve for x
    x = 5,709,511,055,947,582/84,102,041.52
  6. Step 6: Final answer
    x = 67,887,900.85

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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.