Home / 3,123,169.40-4,309,985.30-1,816,734.87

Finding the Fourth Proportional to 3,123,169.40, 4,309,985.30 and 1,816,734.87

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Solution

The fourth proportional to 3,123,169.40, 4,309,985.30 and 1,816,734.87 is: 2,507,100.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,123,169.40 : 4,309,985.30 = 1,816,734.87 : x
  2. Step 2: Convert to fraction form
    3,123,169.40/4,309,985.30 = 1,816,734.87/x
  3. Step 3: Cross multiply
    3,123,169.40x = 4,309,985.30 × 1,816,734.87
  4. Step 4: Simplify right side
    3,123,169.40x = 7,830,100,574,613.74
  5. Step 5: Solve for x
    x = 7,830,100,574,613.74/3,123,169.40
  6. Step 6: Final answer
    x = 2,507,100.83

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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.