Home / 14,269,806.80-21,388,963.80-7,884,641.60

Finding the Fourth Proportional to 14,269,806.80, 21,388,963.80 and 7,884,641.60

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Solution

The fourth proportional to 14,269,806.80, 21,388,963.80 and 7,884,641.60 is: 11,818,261.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,269,806.80 : 21,388,963.80 = 7,884,641.60 : x
  2. Step 2: Convert to fraction form
    14,269,806.80/21,388,963.80 = 7,884,641.60/x
  3. Step 3: Cross multiply
    14,269,806.80x = 21,388,963.80 × 7,884,641.60
  4. Step 4: Simplify right side
    14,269,806.80x = 168,644,313,758,374.06
  5. Step 5: Solve for x
    x = 168,644,313,758,374.06/14,269,806.80
  6. Step 6: Final answer
    x = 11,818,261.88

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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.