Home / 2,154,641.40-3,231,962.10-2,123,148.60

Finding the Fourth Proportional to 2,154,641.40, 3,231,962.10 and 2,123,148.60

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Solution

The fourth proportional to 2,154,641.40, 3,231,962.10 and 2,123,148.60 is: 3,184,722.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,154,641.40 : 3,231,962.10 = 2,123,148.60 : x
  2. Step 2: Convert to fraction form
    2,154,641.40/3,231,962.10 = 2,123,148.60/x
  3. Step 3: Cross multiply
    2,154,641.40x = 3,231,962.10 × 2,123,148.60
  4. Step 4: Simplify right side
    2,154,641.40x = 6,861,935,807,868.06
  5. Step 5: Solve for x
    x = 6,861,935,807,868.06/2,154,641.40
  6. Step 6: Final answer
    x = 3,184,722.90

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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.