Home / 5,156,455.80-7,729,580.70-2,279,384.40

Finding the Fourth Proportional to 5,156,455.80, 7,729,580.70 and 2,279,384.40

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Solution

The fourth proportional to 5,156,455.80, 7,729,580.70 and 2,279,384.40 is: 3,416,820.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,156,455.80 : 7,729,580.70 = 2,279,384.40 : x
  2. Step 2: Convert to fraction form
    5,156,455.80/7,729,580.70 = 2,279,384.40/x
  3. Step 3: Cross multiply
    5,156,455.80x = 7,729,580.70 × 2,279,384.40
  4. Step 4: Simplify right side
    5,156,455.80x = 17,618,685,666,121.08
  5. Step 5: Solve for x
    x = 17,618,685,666,121.08/5,156,455.80
  6. Step 6: Final answer
    x = 3,416,820.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.