Home / 7,121,436.45-9,827,569-3,858,332.28

Finding the Fourth Proportional to 7,121,436.45, 9,827,569 and 3,858,332.28

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Solution

The fourth proportional to 7,121,436.45, 9,827,569 and 3,858,332.28 is: 5,324,491.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,121,436.45 : 9,827,569 = 3,858,332.28 : x
  2. Step 2: Convert to fraction form
    7,121,436.45/9,827,569 = 3,858,332.28/x
  3. Step 3: Cross multiply
    7,121,436.45x = 9,827,569 × 3,858,332.28
  4. Step 4: Simplify right side
    7,121,436.45x = 37,918,026,706,627.32
  5. Step 5: Solve for x
    x = 37,918,026,706,627.32/7,121,436.45
  6. Step 6: Final answer
    x = 5,324,491.34

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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.