Home / 432,378,144.28-648,433,078.84-155,993,428.88

Finding the Fourth Proportional to 432,378,144.28, 648,433,078.84 and 155,993,428.88

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Solution

The fourth proportional to 432,378,144.28, 648,433,078.84 and 155,993,428.88 is: 233,941,749.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,378,144.28 : 648,433,078.84 = 155,993,428.88 : x
  2. Step 2: Convert to fraction form
    432,378,144.28/648,433,078.84 = 155,993,428.88/x
  3. Step 3: Cross multiply
    432,378,144.28x = 648,433,078.84 × 155,993,428.88
  4. Step 4: Simplify right side
    432,378,144.28x = 101,151,299,367,466,976
  5. Step 5: Solve for x
    x = 101,151,299,367,466,976/432,378,144.28
  6. Step 6: Final answer
    x = 233,941,749.15

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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.