Home / 412,034,343.60-618,051,515.40-124,820,007.60

Finding the Fourth Proportional to 412,034,343.60, 618,051,515.40 and 124,820,007.60

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Solution

The fourth proportional to 412,034,343.60, 618,051,515.40 and 124,820,007.60 is: 187,230,011.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,034,343.60 : 618,051,515.40 = 124,820,007.60 : x
  2. Step 2: Convert to fraction form
    412,034,343.60/618,051,515.40 = 124,820,007.60/x
  3. Step 3: Cross multiply
    412,034,343.60x = 618,051,515.40 × 124,820,007.60
  4. Step 4: Simplify right side
    412,034,343.60x = 77,145,194,849,419,504
  5. Step 5: Solve for x
    x = 77,145,194,849,419,504/412,034,343.60
  6. Step 6: Final answer
    x = 187,230,011.40

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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.