Home / 5,190,221.28-7,779,551.76-2,155,896.48

Finding the Fourth Proportional to 5,190,221.28, 7,779,551.76 and 2,155,896.48

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Solution

The fourth proportional to 5,190,221.28, 7,779,551.76 and 2,155,896.48 is: 3,231,443.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,190,221.28 : 7,779,551.76 = 2,155,896.48 : x
  2. Step 2: Convert to fraction form
    5,190,221.28/7,779,551.76 = 2,155,896.48/x
  3. Step 3: Cross multiply
    5,190,221.28x = 7,779,551.76 × 2,155,896.48
  4. Step 4: Simplify right side
    5,190,221.28x = 16,771,908,255,361.80
  5. Step 5: Solve for x
    x = 16,771,908,255,361.80/5,190,221.28
  6. Step 6: Final answer
    x = 3,231,443.78

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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.