Home / 2,158,301.85-2,978,457.08-1,191,432.80

Finding the Fourth Proportional to 2,158,301.85, 2,978,457.08 and 1,191,432.80

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Solution

The fourth proportional to 2,158,301.85, 2,978,457.08 and 1,191,432.80 is: 1,644,177.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,158,301.85 : 2,978,457.08 = 1,191,432.80 : x
  2. Step 2: Convert to fraction form
    2,158,301.85/2,978,457.08 = 1,191,432.80/x
  3. Step 3: Cross multiply
    2,158,301.85x = 2,978,457.08 × 1,191,432.80
  4. Step 4: Simplify right side
    2,158,301.85x = 3,548,631,443,239.38
  5. Step 5: Solve for x
    x = 3,548,631,443,239.38/2,158,301.85
  6. Step 6: Final answer
    x = 1,644,177.55

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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.