Home / 40,894,842.70-61,392,030.45-20,689,684.30

Finding the Fourth Proportional to 40,894,842.70, 61,392,030.45 and 20,689,684.30

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Solution

The fourth proportional to 40,894,842.70, 61,392,030.45 and 20,689,684.30 is: 31,059,704.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,894,842.70 : 61,392,030.45 = 20,689,684.30 : x
  2. Step 2: Convert to fraction form
    40,894,842.70/61,392,030.45 = 20,689,684.30/x
  3. Step 3: Cross multiply
    40,894,842.70x = 61,392,030.45 × 20,689,684.30
  4. Step 4: Simplify right side
    40,894,842.70x = 1,270,181,728,546,487
  5. Step 5: Solve for x
    x = 1,270,181,728,546,487/40,894,842.70
  6. Step 6: Final answer
    x = 31,059,704.47

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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.