Home / 138,476,100.18-191,085,113.97-76,581,032.34

Finding the Fourth Proportional to 138,476,100.18, 191,085,113.97 and 76,581,032.34

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Solution

The fourth proportional to 138,476,100.18, 191,085,113.97 and 76,581,032.34 is: 105,675,241.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,476,100.18 : 191,085,113.97 = 76,581,032.34 : x
  2. Step 2: Convert to fraction form
    138,476,100.18/191,085,113.97 = 76,581,032.34/x
  3. Step 3: Cross multiply
    138,476,100.18x = 191,085,113.97 × 76,581,032.34
  4. Step 4: Simplify right side
    138,476,100.18x = 14,633,495,292,629,156
  5. Step 5: Solve for x
    x = 14,633,495,292,629,156/138,476,100.18
  6. Step 6: Final answer
    x = 105,675,241.24

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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.