Home / 72,615,719.44-100,207,148.52-39,575,288.08

Finding the Fourth Proportional to 72,615,719.44, 100,207,148.52 and 39,575,288.08

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Solution

The fourth proportional to 72,615,719.44, 100,207,148.52 and 39,575,288.08 is: 54,612,510.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,615,719.44 : 100,207,148.52 = 39,575,288.08 : x
  2. Step 2: Convert to fraction form
    72,615,719.44/100,207,148.52 = 39,575,288.08/x
  3. Step 3: Cross multiply
    72,615,719.44x = 100,207,148.52 × 39,575,288.08
  4. Step 4: Simplify right side
    72,615,719.44x = 3,965,726,770,354,345.50
  5. Step 5: Solve for x
    x = 3,965,726,770,354,345.50/72,615,719.44
  6. Step 6: Final answer
    x = 54,612,510.91

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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.