Home / 521,746,365.96-782,747,671.50-259,554,627.72

Finding the Fourth Proportional to 521,746,365.96, 782,747,671.50 and 259,554,627.72

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Solution

The fourth proportional to 521,746,365.96, 782,747,671.50 and 259,554,627.72 is: 389,395,679.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,746,365.96 : 782,747,671.50 = 259,554,627.72 : x
  2. Step 2: Convert to fraction form
    521,746,365.96/782,747,671.50 = 259,554,627.72/x
  3. Step 3: Cross multiply
    521,746,365.96x = 782,747,671.50 × 259,554,627.72
  4. Step 4: Simplify right side
    521,746,365.96x = 203,165,780,474,879,360
  5. Step 5: Solve for x
    x = 203,165,780,474,879,360/521,746,365.96
  6. Step 6: Final answer
    x = 389,395,679.07

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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.