Home / 272,878,190.80-409,317,286.20-100,319,298.10

Finding the Fourth Proportional to 272,878,190.80, 409,317,286.20 and 100,319,298.10

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Solution

The fourth proportional to 272,878,190.80, 409,317,286.20 and 100,319,298.10 is: 150,478,947.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,878,190.80 : 409,317,286.20 = 100,319,298.10 : x
  2. Step 2: Convert to fraction form
    272,878,190.80/409,317,286.20 = 100,319,298.10/x
  3. Step 3: Cross multiply
    272,878,190.80x = 409,317,286.20 × 100,319,298.10
  4. Step 4: Simplify right side
    272,878,190.80x = 41,062,422,851,780,816
  5. Step 5: Solve for x
    x = 41,062,422,851,780,816/272,878,190.80
  6. Step 6: Final answer
    x = 150,478,947.15

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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.