Home / 432,378,122.72-648,433,046.66-155,993,407.34

Finding the Fourth Proportional to 432,378,122.72, 648,433,046.66 and 155,993,407.34

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Solution

The fourth proportional to 432,378,122.72, 648,433,046.66 and 155,993,407.34 is: 233,941,716.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,378,122.72 : 648,433,046.66 = 155,993,407.34 : x
  2. Step 2: Convert to fraction form
    432,378,122.72/648,433,046.66 = 155,993,407.34/x
  3. Step 3: Cross multiply
    432,378,122.72x = 648,433,046.66 × 155,993,407.34
  4. Step 4: Simplify right side
    432,378,122.72x = 101,151,280,376,328,480
  5. Step 5: Solve for x
    x = 101,151,280,376,328,480/432,378,122.72
  6. Step 6: Final answer
    x = 233,941,716.90

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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.