Home / 418,440,339.60-627,660,509.40-131,225,542.80

Finding the Fourth Proportional to 418,440,339.60, 627,660,509.40 and 131,225,542.80

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Solution

The fourth proportional to 418,440,339.60, 627,660,509.40 and 131,225,542.80 is: 196,838,314.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,440,339.60 : 627,660,509.40 = 131,225,542.80 : x
  2. Step 2: Convert to fraction form
    418,440,339.60/627,660,509.40 = 131,225,542.80/x
  3. Step 3: Cross multiply
    418,440,339.60x = 627,660,509.40 × 131,225,542.80
  4. Step 4: Simplify right side
    418,440,339.60x = 82,365,091,040,139,504
  5. Step 5: Solve for x
    x = 82,365,091,040,139,504/418,440,339.60
  6. Step 6: Final answer
    x = 196,838,314.20

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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.