Home / 416,822,309.88-625,171,963.96-121,638,172.55

Finding the Fourth Proportional to 416,822,309.88, 625,171,963.96 and 121,638,172.55

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Solution

The fourth proportional to 416,822,309.88, 625,171,963.96 and 121,638,172.55 is: 182,439,311.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,822,309.88 : 625,171,963.96 = 121,638,172.55 : x
  2. Step 2: Convert to fraction form
    416,822,309.88/625,171,963.96 = 121,638,172.55/x
  3. Step 3: Cross multiply
    416,822,309.88x = 625,171,963.96 × 121,638,172.55
  4. Step 4: Simplify right side
    416,822,309.88x = 76,044,775,224,346,688
  5. Step 5: Solve for x
    x = 76,044,775,224,346,688/416,822,309.88
  6. Step 6: Final answer
    x = 182,439,311.48

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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.