Home / 72,414,240.97-99,930,955.52-39,374,502.36

Finding the Fourth Proportional to 72,414,240.97, 99,930,955.52 and 39,374,502.36

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Solution

The fourth proportional to 72,414,240.97, 99,930,955.52 and 39,374,502.36 is: 54,336,434.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,414,240.97 : 99,930,955.52 = 39,374,502.36 : x
  2. Step 2: Convert to fraction form
    72,414,240.97/99,930,955.52 = 39,374,502.36/x
  3. Step 3: Cross multiply
    72,414,240.97x = 99,930,955.52 × 39,374,502.36
  4. Step 4: Simplify right side
    72,414,240.97x = 3,934,731,643,262,767.50
  5. Step 5: Solve for x
    x = 3,934,731,643,262,767.50/72,414,240.97
  6. Step 6: Final answer
    x = 54,336,434.25

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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.