Home / 520,992,021.60-781,488,032.40-327,122,344.80

Finding the Fourth Proportional to 520,992,021.60, 781,488,032.40 and 327,122,344.80

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Solution

The fourth proportional to 520,992,021.60, 781,488,032.40 and 327,122,344.80 is: 490,683,517.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,992,021.60 : 781,488,032.40 = 327,122,344.80 : x
  2. Step 2: Convert to fraction form
    520,992,021.60/781,488,032.40 = 327,122,344.80/x
  3. Step 3: Cross multiply
    520,992,021.60x = 781,488,032.40 × 327,122,344.80
  4. Step 4: Simplify right side
    520,992,021.60x = 255,642,197,591,826,368
  5. Step 5: Solve for x
    x = 255,642,197,591,826,368/520,992,021.60
  6. Step 6: Final answer
    x = 490,683,517.20

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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.