Home / 7,149,861.72-9,866,739-3,886,482.30

Finding the Fourth Proportional to 7,149,861.72, 9,866,739 and 3,886,482.30

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Solution

The fourth proportional to 7,149,861.72, 9,866,739 and 3,886,482.30 is: 5,363,307.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,149,861.72 : 9,866,739 = 3,886,482.30 : x
  2. Step 2: Convert to fraction form
    7,149,861.72/9,866,739 = 3,886,482.30/x
  3. Step 3: Cross multiply
    7,149,861.72x = 9,866,739 × 3,886,482.30
  4. Step 4: Simplify right side
    7,149,861.72x = 38,346,906,482,219.70
  5. Step 5: Solve for x
    x = 38,346,906,482,219.70/7,149,861.72
  6. Step 6: Final answer
    x = 5,363,307.43

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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.