Home / 252,661,809.20-378,992,713.80-154,451,512.40

Finding the Fourth Proportional to 252,661,809.20, 378,992,713.80 and 154,451,512.40

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Solution

The fourth proportional to 252,661,809.20, 378,992,713.80 and 154,451,512.40 is: 231,677,268.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,661,809.20 : 378,992,713.80 = 154,451,512.40 : x
  2. Step 2: Convert to fraction form
    252,661,809.20/378,992,713.80 = 154,451,512.40/x
  3. Step 3: Cross multiply
    252,661,809.20x = 378,992,713.80 × 154,451,512.40
  4. Step 4: Simplify right side
    252,661,809.20x = 58,535,997,834,990,352
  5. Step 5: Solve for x
    x = 58,535,997,834,990,352/252,661,809.20
  6. Step 6: Final answer
    x = 231,677,268.60

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1.5x scale

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.