Home / 7,129,564.50-9,838,803.81-3,866,378.22

Finding the Fourth Proportional to 7,129,564.50, 9,838,803.81 and 3,866,378.22

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Solution

The fourth proportional to 7,129,564.50, 9,838,803.81 and 3,866,378.22 is: 5,335,604.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,129,564.50 : 9,838,803.81 = 3,866,378.22 : x
  2. Step 2: Convert to fraction form
    7,129,564.50/9,838,803.81 = 3,866,378.22/x
  3. Step 3: Cross multiply
    7,129,564.50x = 9,838,803.81 × 3,866,378.22
  4. Step 4: Simplify right side
    7,129,564.50x = 38,040,536,761,837.02
  5. Step 5: Solve for x
    x = 38,040,536,761,837.02/7,129,564.50
  6. Step 6: Final answer
    x = 5,335,604.55

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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.