Home / 5,178,305.70-7,145,913.15-2,886,417.18

Finding the Fourth Proportional to 5,178,305.70, 7,145,913.15 and 2,886,417.18

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Solution

The fourth proportional to 5,178,305.70, 7,145,913.15 and 2,886,417.18 is: 3,983,172.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,178,305.70 : 7,145,913.15 = 2,886,417.18 : x
  2. Step 2: Convert to fraction form
    5,178,305.70/7,145,913.15 = 2,886,417.18/x
  3. Step 3: Cross multiply
    5,178,305.70x = 7,145,913.15 × 2,886,417.18
  4. Step 4: Simplify right side
    5,178,305.70x = 20,626,086,482,947.92
  5. Step 5: Solve for x
    x = 20,626,086,482,947.92/5,178,305.70
  6. Step 6: Final answer
    x = 3,983,172.81

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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.