Home / 40,132,825.92-55,383,458.40-21,798,417.60

Finding the Fourth Proportional to 40,132,825.92, 55,383,458.40 and 21,798,417.60

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Solution

The fourth proportional to 40,132,825.92, 55,383,458.40 and 21,798,417.60 is: 30,081,902.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,132,825.92 : 55,383,458.40 = 21,798,417.60 : x
  2. Step 2: Convert to fraction form
    40,132,825.92/55,383,458.40 = 21,798,417.60/x
  3. Step 3: Cross multiply
    40,132,825.92x = 55,383,458.40 × 21,798,417.60
  4. Step 4: Simplify right side
    40,132,825.92x = 1,207,271,754,335,428
  5. Step 5: Solve for x
    x = 1,207,271,754,335,428/40,132,825.92
  6. Step 6: Final answer
    x = 30,081,902.45

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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.