Home / 762,912,085.20-1,144,368,127.80-394,446,325.20

Finding the Fourth Proportional to 762,912,085.20, 1,144,368,127.80 and 394,446,325.20

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Solution

The fourth proportional to 762,912,085.20, 1,144,368,127.80 and 394,446,325.20 is: 591,669,487.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,912,085.20 : 1,144,368,127.80 = 394,446,325.20 : x
  2. Step 2: Convert to fraction form
    762,912,085.20/1,144,368,127.80 = 394,446,325.20/x
  3. Step 3: Cross multiply
    762,912,085.20x = 1,144,368,127.80 × 394,446,325.20
  4. Step 4: Simplify right side
    762,912,085.20x = 451,391,802,686,713,920
  5. Step 5: Solve for x
    x = 451,391,802,686,713,920/762,912,085.20
  6. Step 6: Final answer
    x = 591,669,487.80

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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.