Home / 7,147,405.44-9,859,428-4,392,180.72

Finding the Fourth Proportional to 7,147,405.44, 9,859,428 and 4,392,180.72

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Solution

The fourth proportional to 7,147,405.44, 9,859,428 and 4,392,180.72 is: 6,058,756.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,147,405.44 : 9,859,428 = 4,392,180.72 : x
  2. Step 2: Convert to fraction form
    7,147,405.44/9,859,428 = 4,392,180.72/x
  3. Step 3: Cross multiply
    7,147,405.44x = 9,859,428 × 4,392,180.72
  4. Step 4: Simplify right side
    7,147,405.44x = 43,304,389,571,828.16
  5. Step 5: Solve for x
    x = 43,304,389,571,828.16/7,147,405.44
  6. Step 6: Final answer
    x = 6,058,756.56

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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.