Home / 314,928,793.20-472,393,189.80-313,015,605.60

Finding the Fourth Proportional to 314,928,793.20, 472,393,189.80 and 313,015,605.60

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Solution

The fourth proportional to 314,928,793.20, 472,393,189.80 and 313,015,605.60 is: 469,523,408.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,928,793.20 : 472,393,189.80 = 313,015,605.60 : x
  2. Step 2: Convert to fraction form
    314,928,793.20/472,393,189.80 = 313,015,605.60/x
  3. Step 3: Cross multiply
    314,928,793.20x = 472,393,189.80 × 313,015,605.60
  4. Step 4: Simplify right side
    314,928,793.20x = 147,866,440,386,562,752
  5. Step 5: Solve for x
    x = 147,866,440,386,562,752/314,928,793.20
  6. Step 6: Final answer
    x = 469,523,408.40

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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.