Home / 7,129,567.50-9,838,807.95-3,866,381.22

Finding the Fourth Proportional to 7,129,567.50, 9,838,807.95 and 3,866,381.22

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Solution

The fourth proportional to 7,129,567.50, 9,838,807.95 and 3,866,381.22 is: 5,335,608.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,129,567.50 : 9,838,807.95 = 3,866,381.22 : x
  2. Step 2: Convert to fraction form
    7,129,567.50/9,838,807.95 = 3,866,381.22/x
  3. Step 3: Cross multiply
    7,129,567.50x = 9,838,807.95 × 3,866,381.22
  4. Step 4: Simplify right side
    7,129,567.50x = 38,040,582,285,066.70
  5. Step 5: Solve for x
    x = 38,040,582,285,066.70/7,129,567.50
  6. Step 6: Final answer
    x = 5,335,608.69

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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.