Home / 20,684,780.60-31,027,087.14-6,307,806.77

Finding the Fourth Proportional to 20,684,780.60, 31,027,087.14 and 6,307,806.77

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Solution

The fourth proportional to 20,684,780.60, 31,027,087.14 and 6,307,806.77 is: 9,461,684.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,684,780.60 : 31,027,087.14 = 6,307,806.77 : x
  2. Step 2: Convert to fraction form
    20,684,780.60/31,027,087.14 = 6,307,806.77/x
  3. Step 3: Cross multiply
    20,684,780.60x = 31,027,087.14 × 6,307,806.77
  4. Step 4: Simplify right side
    20,684,780.60x = 195,712,870,315,071.94
  5. Step 5: Solve for x
    x = 195,712,870,315,071.94/20,684,780.60
  6. Step 6: Final answer
    x = 9,461,684.61

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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.