Home / 447,638,818.80-671,458,228.20-265,792,393.20

Finding the Fourth Proportional to 447,638,818.80, 671,458,228.20 and 265,792,393.20

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Solution

The fourth proportional to 447,638,818.80, 671,458,228.20 and 265,792,393.20 is: 398,688,589.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,638,818.80 : 671,458,228.20 = 265,792,393.20 : x
  2. Step 2: Convert to fraction form
    447,638,818.80/671,458,228.20 = 265,792,393.20/x
  3. Step 3: Cross multiply
    447,638,818.80x = 671,458,228.20 × 265,792,393.20
  4. Step 4: Simplify right side
    447,638,818.80x = 178,468,489,407,109,728
  5. Step 5: Solve for x
    x = 178,468,489,407,109,728/447,638,818.80
  6. Step 6: Final answer
    x = 398,688,589.80

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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.