Home / 168,316,937.20-252,475,405.80-72,578,825.20

Finding the Fourth Proportional to 168,316,937.20, 252,475,405.80 and 72,578,825.20

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Solution

The fourth proportional to 168,316,937.20, 252,475,405.80 and 72,578,825.20 is: 108,868,237.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,316,937.20 : 252,475,405.80 = 72,578,825.20 : x
  2. Step 2: Convert to fraction form
    168,316,937.20/252,475,405.80 = 72,578,825.20/x
  3. Step 3: Cross multiply
    168,316,937.20x = 252,475,405.80 × 72,578,825.20
  4. Step 4: Simplify right side
    168,316,937.20x = 18,324,368,344,857,268
  5. Step 5: Solve for x
    x = 18,324,368,344,857,268/168,316,937.20
  6. Step 6: Final answer
    x = 108,868,237.80

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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.