Home / 782,352,012.30-1,173,528,018.45-394,024,793.10

Finding the Fourth Proportional to 782,352,012.30, 1,173,528,018.45 and 394,024,793.10

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Solution

The fourth proportional to 782,352,012.30, 1,173,528,018.45 and 394,024,793.10 is: 591,037,189.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,352,012.30 : 1,173,528,018.45 = 394,024,793.10 : x
  2. Step 2: Convert to fraction form
    782,352,012.30/1,173,528,018.45 = 394,024,793.10/x
  3. Step 3: Cross multiply
    782,352,012.30x = 1,173,528,018.45 × 394,024,793.10
  4. Step 4: Simplify right side
    782,352,012.30x = 462,399,134,666,814,272
  5. Step 5: Solve for x
    x = 462,399,134,666,814,272/782,352,012.30
  6. Step 6: Final answer
    x = 591,037,189.65

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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.