Home / 12,948,867.84-17,869,440.64-7,147,651.84

Finding the Fourth Proportional to 12,948,867.84, 17,869,440.64 and 7,147,651.84

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Solution

The fourth proportional to 12,948,867.84, 17,869,440.64 and 7,147,651.84 is: 9,863,761.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,948,867.84 : 17,869,440.64 = 7,147,651.84 : x
  2. Step 2: Convert to fraction form
    12,948,867.84/17,869,440.64 = 7,147,651.84/x
  3. Step 3: Cross multiply
    12,948,867.84x = 17,869,440.64 × 7,147,651.84
  4. Step 4: Simplify right side
    12,948,867.84x = 127,724,540,270,266.78
  5. Step 5: Solve for x
    x = 127,724,540,270,266.78/12,948,867.84
  6. Step 6: Final answer
    x = 9,863,761.21

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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.