Home / 12,948,464.21-17,868,882.35-7,147,247.45

Finding the Fourth Proportional to 12,948,464.21, 17,868,882.35 and 7,147,247.45

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Solution

The fourth proportional to 12,948,464.21, 17,868,882.35 and 7,147,247.45 is: 9,863,202.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,948,464.21 : 17,868,882.35 = 7,147,247.45 : x
  2. Step 2: Convert to fraction form
    12,948,464.21/17,868,882.35 = 7,147,247.45/x
  3. Step 3: Cross multiply
    12,948,464.21x = 17,868,882.35 × 7,147,247.45
  4. Step 4: Simplify right side
    12,948,464.21x = 127,713,323,738,911.22
  5. Step 5: Solve for x
    x = 127,713,323,738,911.22/12,948,464.21
  6. Step 6: Final answer
    x = 9,863,202.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.