Home / 10,273,287.40-15,380,439.90-9,978,375.40

Finding the Fourth Proportional to 10,273,287.40, 15,380,439.90 and 9,978,375.40

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Solution

The fourth proportional to 10,273,287.40, 15,380,439.90 and 9,978,375.40 is: 14,938,918.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,273,287.40 : 15,380,439.90 = 9,978,375.40 : x
  2. Step 2: Convert to fraction form
    10,273,287.40/15,380,439.90 = 9,978,375.40/x
  3. Step 3: Cross multiply
    10,273,287.40x = 15,380,439.90 × 9,978,375.40
  4. Step 4: Simplify right side
    10,273,287.40x = 153,471,803,139,338.47
  5. Step 5: Solve for x
    x = 153,471,803,139,338.47/10,273,287.40
  6. Step 6: Final answer
    x = 14,938,918.49

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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.