Home / 7,129,348.90-9,838,503.72-3,866,162.65

Finding the Fourth Proportional to 7,129,348.90, 9,838,503.72 and 3,866,162.65

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Solution

The fourth proportional to 7,129,348.90, 9,838,503.72 and 3,866,162.65 is: 5,335,305.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,129,348.90 : 9,838,503.72 = 3,866,162.65 : x
  2. Step 2: Convert to fraction form
    7,129,348.90/9,838,503.72 = 3,866,162.65/x
  3. Step 3: Cross multiply
    7,129,348.90x = 9,838,503.72 × 3,866,162.65
  4. Step 4: Simplify right side
    7,129,348.90x = 38,037,255,614,150.06
  5. Step 5: Solve for x
    x = 38,037,255,614,150.06/7,129,348.90
  6. Step 6: Final answer
    x = 5,335,305.67

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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.