Home / 72,891,140.96-100,591,874.08-40,298,192.48

Finding the Fourth Proportional to 72,891,140.96, 100,591,874.08 and 40,298,192.48

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Solution

The fourth proportional to 72,891,140.96, 100,591,874.08 and 40,298,192.48 is: 55,612,666.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,891,140.96 : 100,591,874.08 = 40,298,192.48 : x
  2. Step 2: Convert to fraction form
    72,891,140.96/100,591,874.08 = 40,298,192.48/x
  3. Step 3: Cross multiply
    72,891,140.96x = 100,591,874.08 × 40,298,192.48
  4. Step 4: Simplify right side
    72,891,140.96x = 4,053,670,703,599,762.50
  5. Step 5: Solve for x
    x = 4,053,670,703,599,762.50/72,891,140.96
  6. Step 6: Final answer
    x = 55,612,666.37

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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.