Home / 528,740,845.28-729,358,375.92-330,157,571.04

Finding the Fourth Proportional to 528,740,845.28, 729,358,375.92 and 330,157,571.04

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Solution

The fourth proportional to 528,740,845.28, 729,358,375.92 and 330,157,571.04 is: 455,427,629.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,740,845.28 : 729,358,375.92 = 330,157,571.04 : x
  2. Step 2: Convert to fraction form
    528,740,845.28/729,358,375.92 = 330,157,571.04/x
  3. Step 3: Cross multiply
    528,740,845.28x = 729,358,375.92 × 330,157,571.04
  4. Step 4: Simplify right side
    528,740,845.28x = 240,803,189,811,426,432
  5. Step 5: Solve for x
    x = 240,803,189,811,426,432/528,740,845.28
  6. Step 6: Final answer
    x = 455,427,629.55

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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.