Home / 87,867,989.51-121,257,822.89-48,709,667.03

Finding the Fourth Proportional to 87,867,989.51, 121,257,822.89 and 48,709,667.03

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Solution

The fourth proportional to 87,867,989.51, 121,257,822.89 and 48,709,667.03 is: 67,219,339.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,867,989.51 : 121,257,822.89 = 48,709,667.03 : x
  2. Step 2: Convert to fraction form
    87,867,989.51/121,257,822.89 = 48,709,667.03/x
  3. Step 3: Cross multiply
    87,867,989.51x = 121,257,822.89 × 48,709,667.03
  4. Step 4: Simplify right side
    87,867,989.51x = 5,906,428,177,270,097
  5. Step 5: Solve for x
    x = 5,906,428,177,270,097/87,867,989.51
  6. Step 6: Final answer
    x = 67,219,339.04

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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.