Home / 72,684,119.70-100,305,267.77-39,644,360.46

Finding the Fourth Proportional to 72,684,119.70, 100,305,267.77 and 39,644,360.46

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Solution

The fourth proportional to 72,684,119.70, 100,305,267.77 and 39,644,360.46 is: 54,709,862.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,684,119.70 : 100,305,267.77 = 39,644,360.46 : x
  2. Step 2: Convert to fraction form
    72,684,119.70/100,305,267.77 = 39,644,360.46/x
  3. Step 3: Cross multiply
    72,684,119.70x = 100,305,267.77 × 39,644,360.46
  4. Step 4: Simplify right side
    72,684,119.70x = 3,976,538,191,312,478.50
  5. Step 5: Solve for x
    x = 3,976,538,191,312,478.50/72,684,119.70
  6. Step 6: Final answer
    x = 54,709,862.45

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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.