Home / 7,129,349.90-9,838,505.10-3,866,163.66

Finding the Fourth Proportional to 7,129,349.90, 9,838,505.10 and 3,866,163.66

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Solution

The fourth proportional to 7,129,349.90, 9,838,505.10 and 3,866,163.66 is: 5,335,307.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,129,349.90 : 9,838,505.10 = 3,866,163.66 : x
  2. Step 2: Convert to fraction form
    7,129,349.90/9,838,505.10 = 3,866,163.66/x
  3. Step 3: Cross multiply
    7,129,349.90x = 9,838,505.10 × 3,866,163.66
  4. Step 4: Simplify right side
    7,129,349.90x = 38,037,270,886,344.66
  5. Step 5: Solve for x
    x = 38,037,270,886,344.66/7,129,349.90
  6. Step 6: Final answer
    x = 5,335,307.06

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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.