Home / 521,554,025.70-782,331,038.55-314,929,764.90

Finding the Fourth Proportional to 521,554,025.70, 782,331,038.55 and 314,929,764.90

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Solution

The fourth proportional to 521,554,025.70, 782,331,038.55 and 314,929,764.90 is: 472,394,647.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,554,025.70 : 782,331,038.55 = 314,929,764.90 : x
  2. Step 2: Convert to fraction form
    521,554,025.70/782,331,038.55 = 314,929,764.90/x
  3. Step 3: Cross multiply
    521,554,025.70x = 782,331,038.55 × 314,929,764.90
  4. Step 4: Simplify right side
    521,554,025.70x = 246,379,330,044,524,288
  5. Step 5: Solve for x
    x = 246,379,330,044,524,288/521,554,025.70
  6. Step 6: Final answer
    x = 472,394,647.35

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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.