Home / 115,917,334.90-173,876,002.35-81,905,110.90

Finding the Fourth Proportional to 115,917,334.90, 173,876,002.35 and 81,905,110.90

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Solution

The fourth proportional to 115,917,334.90, 173,876,002.35 and 81,905,110.90 is: 122,857,666.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,917,334.90 : 173,876,002.35 = 81,905,110.90 : x
  2. Step 2: Convert to fraction form
    115,917,334.90/173,876,002.35 = 81,905,110.90/x
  3. Step 3: Cross multiply
    115,917,334.90x = 173,876,002.35 × 81,905,110.90
  4. Step 4: Simplify right side
    115,917,334.90x = 14,241,333,255,325,412
  5. Step 5: Solve for x
    x = 14,241,333,255,325,412/115,917,334.90
  6. Step 6: Final answer
    x = 122,857,666.35

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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.