Home / 149,563,422.35-206,431,960.16-87,703,689.95

Finding the Fourth Proportional to 149,563,422.35, 206,431,960.16 and 87,703,689.95

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Solution

The fourth proportional to 149,563,422.35, 206,431,960.16 and 87,703,689.95 is: 121,051,286.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,563,422.35 : 206,431,960.16 = 87,703,689.95 : x
  2. Step 2: Convert to fraction form
    149,563,422.35/206,431,960.16 = 87,703,689.95/x
  3. Step 3: Cross multiply
    149,563,422.35x = 206,431,960.16 × 87,703,689.95
  4. Step 4: Simplify right side
    149,563,422.35x = 18,104,844,628,172,712
  5. Step 5: Solve for x
    x = 18,104,844,628,172,712/149,563,422.35
  6. Step 6: Final answer
    x = 121,051,286.10

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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.