Home / 168,068,400.30-252,102,600.45-99,875,990.70

Finding the Fourth Proportional to 168,068,400.30, 252,102,600.45 and 99,875,990.70

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Solution

The fourth proportional to 168,068,400.30, 252,102,600.45 and 99,875,990.70 is: 149,813,986.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,068,400.30 : 252,102,600.45 = 99,875,990.70 : x
  2. Step 2: Convert to fraction form
    168,068,400.30/252,102,600.45 = 99,875,990.70/x
  3. Step 3: Cross multiply
    168,068,400.30x = 252,102,600.45 × 99,875,990.70
  4. Step 4: Simplify right side
    168,068,400.30x = 25,178,996,977,990,016
  5. Step 5: Solve for x
    x = 25,178,996,977,990,016/168,068,400.30
  6. Step 6: Final answer
    x = 149,813,986.05

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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.