Home / 21,188,188.60-31,785,270.89-6,806,434.68

Finding the Fourth Proportional to 21,188,188.60, 31,785,270.89 and 6,806,434.68

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Solution

The fourth proportional to 21,188,188.60, 31,785,270.89 and 6,806,434.68 is: 10,210,611.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,188,188.60 : 31,785,270.89 = 6,806,434.68 : x
  2. Step 2: Convert to fraction form
    21,188,188.60/31,785,270.89 = 6,806,434.68/x
  3. Step 3: Cross multiply
    21,188,188.60x = 31,785,270.89 × 6,806,434.68
  4. Step 4: Simplify right side
    21,188,188.60x = 216,344,370,064,858.28
  5. Step 5: Solve for x
    x = 216,344,370,064,858.28/21,188,188.60
  6. Step 6: Final answer
    x = 10,210,611.87

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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.