Home / 412,992,079.20-618,741,622.80-240,327,554.40

Finding the Fourth Proportional to 412,992,079.20, 618,741,622.80 and 240,327,554.40

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Solution

The fourth proportional to 412,992,079.20, 618,741,622.80 and 240,327,554.40 is: 360,056,932.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,992,079.20 : 618,741,622.80 = 240,327,554.40 : x
  2. Step 2: Convert to fraction form
    412,992,079.20/618,741,622.80 = 240,327,554.40/x
  3. Step 3: Cross multiply
    412,992,079.20x = 618,741,622.80 × 240,327,554.40
  4. Step 4: Simplify right side
    412,992,079.20x = 148,700,661,013,011,264
  5. Step 5: Solve for x
    x = 148,700,661,013,011,264/412,992,079.20
  6. Step 6: Final answer
    x = 360,056,932.09

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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.