Home / 20,954,761.79-31,432,151.40-9,426,763.91

Finding the Fourth Proportional to 20,954,761.79, 31,432,151.40 and 9,426,763.91

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Solution

The fourth proportional to 20,954,761.79, 31,432,151.40 and 9,426,763.91 is: 14,140,149.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,954,761.79 : 31,432,151.40 = 9,426,763.91 : x
  2. Step 2: Convert to fraction form
    20,954,761.79/31,432,151.40 = 9,426,763.91/x
  3. Step 3: Cross multiply
    20,954,761.79x = 31,432,151.40 × 9,426,763.91
  4. Step 4: Simplify right side
    20,954,761.79x = 296,303,470,474,405.94
  5. Step 5: Solve for x
    x = 296,303,470,474,405.94/20,954,761.79
  6. Step 6: Final answer
    x = 14,140,149.79

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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.