Home / 319,788,049.20-479,682,073.80-314,686,215.60

Finding the Fourth Proportional to 319,788,049.20, 479,682,073.80 and 314,686,215.60

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Solution

The fourth proportional to 319,788,049.20, 479,682,073.80 and 314,686,215.60 is: 472,029,323.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,788,049.20 : 479,682,073.80 = 314,686,215.60 : x
  2. Step 2: Convert to fraction form
    319,788,049.20/479,682,073.80 = 314,686,215.60/x
  3. Step 3: Cross multiply
    319,788,049.20x = 479,682,073.80 × 314,686,215.60
  4. Step 4: Simplify right side
    319,788,049.20x = 150,949,336,495,281,920
  5. Step 5: Solve for x
    x = 150,949,336,495,281,920/319,788,049.20
  6. Step 6: Final answer
    x = 472,029,323.40

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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.