Home / 168,023,693.49-231,718,602.74-115,177,200.45

Finding the Fourth Proportional to 168,023,693.49, 231,718,602.74 and 115,177,200.45

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Solution

The fourth proportional to 168,023,693.49, 231,718,602.74 and 115,177,200.45 is: 158,838,907.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,023,693.49 : 231,718,602.74 = 115,177,200.45 : x
  2. Step 2: Convert to fraction form
    168,023,693.49/231,718,602.74 = 115,177,200.45/x
  3. Step 3: Cross multiply
    168,023,693.49x = 231,718,602.74 × 115,177,200.45
  4. Step 4: Simplify right side
    168,023,693.49x = 26,688,699,954,983,672
  5. Step 5: Solve for x
    x = 26,688,699,954,983,672/168,023,693.49
  6. Step 6: Final answer
    x = 158,838,907.78

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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.