Home / 7,043,754.80-9,720,417.48-3,988,564.40

Finding the Fourth Proportional to 7,043,754.80, 9,720,417.48 and 3,988,564.40

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Solution

The fourth proportional to 7,043,754.80, 9,720,417.48 and 3,988,564.40 is: 5,504,239.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,043,754.80 : 9,720,417.48 = 3,988,564.40 : x
  2. Step 2: Convert to fraction form
    7,043,754.80/9,720,417.48 = 3,988,564.40/x
  3. Step 3: Cross multiply
    7,043,754.80x = 9,720,417.48 × 3,988,564.40
  4. Step 4: Simplify right side
    7,043,754.80x = 38,770,511,113,865.71
  5. Step 5: Solve for x
    x = 38,770,511,113,865.71/7,043,754.80
  6. Step 6: Final answer
    x = 5,504,239.18

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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.