Home / 72,682,264.08-100,302,719.76-39,642,513.28

Finding the Fourth Proportional to 72,682,264.08, 100,302,719.76 and 39,642,513.28

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Solution

The fourth proportional to 72,682,264.08, 100,302,719.76 and 39,642,513.28 is: 54,707,320.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,682,264.08 : 100,302,719.76 = 39,642,513.28 : x
  2. Step 2: Convert to fraction form
    72,682,264.08/100,302,719.76 = 39,642,513.28/x
  3. Step 3: Cross multiply
    72,682,264.08x = 100,302,719.76 × 39,642,513.28
  4. Step 4: Simplify right side
    72,682,264.08x = 3,976,251,900,105,918.50
  5. Step 5: Solve for x
    x = 3,976,251,900,105,918.50/72,682,264.08
  6. Step 6: Final answer
    x = 54,707,320.29

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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.