Home / 5,216,999.70-7,825,499.55-1,378,814.70

Finding the Fourth Proportional to 5,216,999.70, 7,825,499.55 and 1,378,814.70

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Solution

The fourth proportional to 5,216,999.70, 7,825,499.55 and 1,378,814.70 is: 2,068,222.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,216,999.70 : 7,825,499.55 = 1,378,814.70 : x
  2. Step 2: Convert to fraction form
    5,216,999.70/7,825,499.55 = 1,378,814.70/x
  3. Step 3: Cross multiply
    5,216,999.70x = 7,825,499.55 × 1,378,814.70
  4. Step 4: Simplify right side
    5,216,999.70x = 10,789,913,814,383.38
  5. Step 5: Solve for x
    x = 10,789,913,814,383.38/5,216,999.70
  6. Step 6: Final answer
    x = 2,068,222.05

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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.