Home / 485,280,499.60-727,920,749.40-482,257,190.80

Finding the Fourth Proportional to 485,280,499.60, 727,920,749.40 and 482,257,190.80

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Solution

The fourth proportional to 485,280,499.60, 727,920,749.40 and 482,257,190.80 is: 723,385,786.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,280,499.60 : 727,920,749.40 = 482,257,190.80 : x
  2. Step 2: Convert to fraction form
    485,280,499.60/727,920,749.40 = 482,257,190.80/x
  3. Step 3: Cross multiply
    485,280,499.60x = 727,920,749.40 × 482,257,190.80
  4. Step 4: Simplify right side
    485,280,499.60x = 351,045,015,730,674,752
  5. Step 5: Solve for x
    x = 351,045,015,730,674,752/485,280,499.60
  6. Step 6: Final answer
    x = 723,385,786.20

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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.