Home / 5,211,377.40-7,816,806.90-2,687,287.80

Finding the Fourth Proportional to 5,211,377.40, 7,816,806.90 and 2,687,287.80

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Solution

The fourth proportional to 5,211,377.40, 7,816,806.90 and 2,687,287.80 is: 4,030,798.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,211,377.40 : 7,816,806.90 = 2,687,287.80 : x
  2. Step 2: Convert to fraction form
    5,211,377.40/7,816,806.90 = 2,687,287.80/x
  3. Step 3: Cross multiply
    5,211,377.40x = 7,816,806.90 × 2,687,287.80
  4. Step 4: Simplify right side
    5,211,377.40x = 21,006,009,817,325.82
  5. Step 5: Solve for x
    x = 21,006,009,817,325.82/5,211,377.40
  6. Step 6: Final answer
    x = 4,030,798.04

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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.