Home / 687,299,553.92-948,673,247.45-449,180,559.42

Finding the Fourth Proportional to 687,299,553.92, 948,673,247.45 and 449,180,559.42

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Solution

The fourth proportional to 687,299,553.92, 948,673,247.45 and 449,180,559.42 is: 619,999,791.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,299,553.92 : 948,673,247.45 = 449,180,559.42 : x
  2. Step 2: Convert to fraction form
    687,299,553.92/948,673,247.45 = 449,180,559.42/x
  3. Step 3: Cross multiply
    687,299,553.92x = 948,673,247.45 × 449,180,559.42
  4. Step 4: Simplify right side
    687,299,553.92x = 426,125,579,996,379,136
  5. Step 5: Solve for x
    x = 426,125,579,996,379,136/687,299,553.92
  6. Step 6: Final answer
    x = 619,999,791.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.