Home / 84,456,080.80-126,684,121.20-52,002,750.40

Finding the Fourth Proportional to 84,456,080.80, 126,684,121.20 and 52,002,750.40

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Solution

The fourth proportional to 84,456,080.80, 126,684,121.20 and 52,002,750.40 is: 78,004,125.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,456,080.80 : 126,684,121.20 = 52,002,750.40 : x
  2. Step 2: Convert to fraction form
    84,456,080.80/126,684,121.20 = 52,002,750.40/x
  3. Step 3: Cross multiply
    84,456,080.80x = 126,684,121.20 × 52,002,750.40
  4. Step 4: Simplify right side
    84,456,080.80x = 6,587,922,734,406,948
  5. Step 5: Solve for x
    x = 6,587,922,734,406,948/84,456,080.80
  6. Step 6: Final answer
    x = 78,004,125.60

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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.