Home / 144,507,428-199,394,524.92-81,783,231.20

Finding the Fourth Proportional to 144,507,428, 199,394,524.92 and 81,783,231.20

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Solution

The fourth proportional to 144,507,428, 199,394,524.92 and 81,783,231.20 is: 112,846,299.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,507,428 : 199,394,524.92 = 81,783,231.20 : x
  2. Step 2: Convert to fraction form
    144,507,428/199,394,524.92 = 81,783,231.20/x
  3. Step 3: Cross multiply
    144,507,428x = 199,394,524.92 × 81,783,231.20
  4. Step 4: Simplify right side
    144,507,428x = 16,307,128,531,546,522
  5. Step 5: Solve for x
    x = 16,307,128,531,546,522/144,507,428
  6. Step 6: Final answer
    x = 112,846,299.72

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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.