Home / 54,404,986.40-81,607,479.60-51,287,199.20

Finding the Fourth Proportional to 54,404,986.40, 81,607,479.60 and 51,287,199.20

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Solution

The fourth proportional to 54,404,986.40, 81,607,479.60 and 51,287,199.20 is: 76,930,798.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,404,986.40 : 81,607,479.60 = 51,287,199.20 : x
  2. Step 2: Convert to fraction form
    54,404,986.40/81,607,479.60 = 51,287,199.20/x
  3. Step 3: Cross multiply
    54,404,986.40x = 81,607,479.60 × 51,287,199.20
  4. Step 4: Simplify right side
    54,404,986.40x = 4,185,419,062,455,136.50
  5. Step 5: Solve for x
    x = 4,185,419,062,455,136.50/54,404,986.40
  6. Step 6: Final answer
    x = 76,930,798.80

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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.