Home / 155,812,377.60-214,982,449.92-100,741,968

Finding the Fourth Proportional to 155,812,377.60, 214,982,449.92 and 100,741,968

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Solution

The fourth proportional to 155,812,377.60, 214,982,449.92 and 100,741,968 is: 138,998,938.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,812,377.60 : 214,982,449.92 = 100,741,968 : x
  2. Step 2: Convert to fraction form
    155,812,377.60/214,982,449.92 = 100,741,968/x
  3. Step 3: Cross multiply
    155,812,377.60x = 214,982,449.92 × 100,741,968
  4. Step 4: Simplify right side
    155,812,377.60x = 21,657,755,090,402,240
  5. Step 5: Solve for x
    x = 21,657,755,090,402,240/155,812,377.60
  6. Step 6: Final answer
    x = 138,998,938.49

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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.