Home / 5,128,438.35-7,690,129.83-1,800,724.82

Finding the Fourth Proportional to 5,128,438.35, 7,690,129.83 and 1,800,724.82

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Solution

The fourth proportional to 5,128,438.35, 7,690,129.83 and 1,800,724.82 is: 2,700,199.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,128,438.35 : 7,690,129.83 = 1,800,724.82 : x
  2. Step 2: Convert to fraction form
    5,128,438.35/7,690,129.83 = 1,800,724.82/x
  3. Step 3: Cross multiply
    5,128,438.35x = 7,690,129.83 × 1,800,724.82
  4. Step 4: Simplify right side
    5,128,438.35x = 13,847,807,653,903.38
  5. Step 5: Solve for x
    x = 13,847,807,653,903.38/5,128,438.35
  6. Step 6: Final answer
    x = 2,700,199.69

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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.