Home / 187,487,989.20-281,231,983.80-168,403,352.40

Finding the Fourth Proportional to 187,487,989.20, 281,231,983.80 and 168,403,352.40

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Solution

The fourth proportional to 187,487,989.20, 281,231,983.80 and 168,403,352.40 is: 252,605,028.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,487,989.20 : 281,231,983.80 = 168,403,352.40 : x
  2. Step 2: Convert to fraction form
    187,487,989.20/281,231,983.80 = 168,403,352.40/x
  3. Step 3: Cross multiply
    187,487,989.20x = 281,231,983.80 × 168,403,352.40
  4. Step 4: Simplify right side
    187,487,989.20x = 47,360,408,874,022,496
  5. Step 5: Solve for x
    x = 47,360,408,874,022,496/187,487,989.20
  6. Step 6: Final answer
    x = 252,605,028.60

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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.