Home / 20,806,914.60-31,173,047.10-17,820,930.60

Finding the Fourth Proportional to 20,806,914.60, 31,173,047.10 and 17,820,930.60

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Solution

The fourth proportional to 20,806,914.60, 31,173,047.10 and 17,820,930.60 is: 26,699,427.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,806,914.60 : 31,173,047.10 = 17,820,930.60 : x
  2. Step 2: Convert to fraction form
    20,806,914.60/31,173,047.10 = 17,820,930.60/x
  3. Step 3: Cross multiply
    20,806,914.60x = 31,173,047.10 × 17,820,930.60
  4. Step 4: Simplify right side
    20,806,914.60x = 555,532,708,959,631.31
  5. Step 5: Solve for x
    x = 555,532,708,959,631.31/20,806,914.60
  6. Step 6: Final answer
    x = 26,699,427.55

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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.