Home / 65,851,814.40-98,777,721.60-20,427,532.80

Finding the Fourth Proportional to 65,851,814.40, 98,777,721.60 and 20,427,532.80

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Solution

The fourth proportional to 65,851,814.40, 98,777,721.60 and 20,427,532.80 is: 30,641,299.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,851,814.40 : 98,777,721.60 = 20,427,532.80 : x
  2. Step 2: Convert to fraction form
    65,851,814.40/98,777,721.60 = 20,427,532.80/x
  3. Step 3: Cross multiply
    65,851,814.40x = 98,777,721.60 × 20,427,532.80
  4. Step 4: Simplify right side
    65,851,814.40x = 2,017,785,147,893,268.50
  5. Step 5: Solve for x
    x = 2,017,785,147,893,268.50/65,851,814.40
  6. Step 6: Final answer
    x = 30,641,299.20

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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.