Home / 151,351,185.23-208,864,627.61-81,736,559.40

Finding the Fourth Proportional to 151,351,185.23, 208,864,627.61 and 81,736,559.40

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Solution

The fourth proportional to 151,351,185.23, 208,864,627.61 and 81,736,559.40 is: 112,796,447.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,351,185.23 : 208,864,627.61 = 81,736,559.40 : x
  2. Step 2: Convert to fraction form
    151,351,185.23/208,864,627.61 = 81,736,559.40/x
  3. Step 3: Cross multiply
    151,351,185.23x = 208,864,627.61 × 81,736,559.40
  4. Step 4: Simplify right side
    151,351,185.23x = 17,071,876,040,794,962
  5. Step 5: Solve for x
    x = 17,071,876,040,794,962/151,351,185.23
  6. Step 6: Final answer
    x = 112,796,447.65

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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.