Home / 72,891,009-100,591,691.94-40,298,060.52

Finding the Fourth Proportional to 72,891,009, 100,591,691.94 and 40,298,060.52

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Solution

The fourth proportional to 72,891,009, 100,591,691.94 and 40,298,060.52 is: 55,612,484.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,891,009 : 100,591,691.94 = 40,298,060.52 : x
  2. Step 2: Convert to fraction form
    72,891,009/100,591,691.94 = 40,298,060.52/x
  3. Step 3: Cross multiply
    72,891,009x = 100,591,691.94 × 40,298,060.52
  4. Step 4: Simplify right side
    72,891,009x = 4,053,650,089,607,316.50
  5. Step 5: Solve for x
    x = 4,053,650,089,607,316.50/72,891,009
  6. Step 6: Final answer
    x = 55,612,484.24

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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.