Home / 115,941,740.95-159,998,659.37-63,730,221.49

Finding the Fourth Proportional to 115,941,740.95, 159,998,659.37 and 63,730,221.49

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Solution

The fourth proportional to 115,941,740.95, 159,998,659.37 and 63,730,221.49 is: 87,947,187.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,941,740.95 : 159,998,659.37 = 63,730,221.49 : x
  2. Step 2: Convert to fraction form
    115,941,740.95/159,998,659.37 = 63,730,221.49/x
  3. Step 3: Cross multiply
    115,941,740.95x = 159,998,659.37 × 63,730,221.49
  4. Step 4: Simplify right side
    115,941,740.95x = 10,196,749,998,953,170
  5. Step 5: Solve for x
    x = 10,196,749,998,953,170/115,941,740.95
  6. Step 6: Final answer
    x = 87,947,187.23

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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.