Home / 28,428,858.38-42,531,087.18-21,532,204.75

Finding the Fourth Proportional to 28,428,858.38, 42,531,087.18 and 21,532,204.75

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Solution

The fourth proportional to 28,428,858.38, 42,531,087.18 and 21,532,204.75 is: 32,213,325.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,428,858.38 : 42,531,087.18 = 21,532,204.75 : x
  2. Step 2: Convert to fraction form
    28,428,858.38/42,531,087.18 = 21,532,204.75/x
  3. Step 3: Cross multiply
    28,428,858.38x = 42,531,087.18 × 21,532,204.75
  4. Step 4: Simplify right side
    28,428,858.38x = 915,788,077,399,860.12
  5. Step 5: Solve for x
    x = 915,788,077,399,860.12/28,428,858.38
  6. Step 6: Final answer
    x = 32,213,325.81

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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.