Home / 314,928,326.20-472,392,489.30-313,015,138.60

Finding the Fourth Proportional to 314,928,326.20, 472,392,489.30 and 313,015,138.60

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Solution

The fourth proportional to 314,928,326.20, 472,392,489.30 and 313,015,138.60 is: 469,522,707.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,928,326.20 : 472,392,489.30 = 313,015,138.60 : x
  2. Step 2: Convert to fraction form
    314,928,326.20/472,392,489.30 = 313,015,138.60/x
  3. Step 3: Cross multiply
    314,928,326.20x = 472,392,489.30 × 313,015,138.60
  4. Step 4: Simplify right side
    314,928,326.20x = 147,866,000,511,838,528
  5. Step 5: Solve for x
    x = 147,866,000,511,838,528/314,928,326.20
  6. Step 6: Final answer
    x = 469,522,707.90

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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.