Home / 5,359,121.40-8,038,682.10-1,992,631.80

Finding the Fourth Proportional to 5,359,121.40, 8,038,682.10 and 1,992,631.80

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Solution

The fourth proportional to 5,359,121.40, 8,038,682.10 and 1,992,631.80 is: 2,988,947.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,359,121.40 : 8,038,682.10 = 1,992,631.80 : x
  2. Step 2: Convert to fraction form
    5,359,121.40/8,038,682.10 = 1,992,631.80/x
  3. Step 3: Cross multiply
    5,359,121.40x = 8,038,682.10 × 1,992,631.80
  4. Step 4: Simplify right side
    5,359,121.40x = 16,018,133,582,550.78
  5. Step 5: Solve for x
    x = 16,018,133,582,550.78/5,359,121.40
  6. Step 6: Final answer
    x = 2,988,947.70

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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.