Home / 3,256,869.60-4,885,304.40-2,123,128.80

Finding the Fourth Proportional to 3,256,869.60, 4,885,304.40 and 2,123,128.80

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Solution

The fourth proportional to 3,256,869.60, 4,885,304.40 and 2,123,128.80 is: 3,184,693.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,256,869.60 : 4,885,304.40 = 2,123,128.80 : x
  2. Step 2: Convert to fraction form
    3,256,869.60/4,885,304.40 = 2,123,128.80/x
  3. Step 3: Cross multiply
    3,256,869.60x = 4,885,304.40 × 2,123,128.80
  4. Step 4: Simplify right side
    3,256,869.60x = 10,372,130,468,406.72
  5. Step 5: Solve for x
    x = 10,372,130,468,406.72/3,256,869.60
  6. Step 6: Final answer
    x = 3,184,693.20

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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.