Home / 90,604,877.82-135,814,004.73-39,477,366.78

Finding the Fourth Proportional to 90,604,877.82, 135,814,004.73 and 39,477,366.78

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Solution

The fourth proportional to 90,604,877.82, 135,814,004.73 and 39,477,366.78 is: 59,175,393.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,604,877.82 : 135,814,004.73 = 39,477,366.78 : x
  2. Step 2: Convert to fraction form
    90,604,877.82/135,814,004.73 = 39,477,366.78/x
  3. Step 3: Cross multiply
    90,604,877.82x = 135,814,004.73 × 39,477,366.78
  4. Step 4: Simplify right side
    90,604,877.82x = 5,361,579,278,586,865
  5. Step 5: Solve for x
    x = 5,361,579,278,586,865/90,604,877.82
  6. Step 6: Final answer
    x = 59,175,393.29

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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.