Home / 12,948,808.42-17,869,352.93-7,147,588.65

Finding the Fourth Proportional to 12,948,808.42, 17,869,352.93 and 7,147,588.65

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Solution

The fourth proportional to 12,948,808.42, 17,869,352.93 and 7,147,588.65 is: 9,863,670.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,948,808.42 : 17,869,352.93 = 7,147,588.65 : x
  2. Step 2: Convert to fraction form
    12,948,808.42/17,869,352.93 = 7,147,588.65/x
  3. Step 3: Cross multiply
    12,948,808.42x = 17,869,352.93 × 7,147,588.65
  4. Step 4: Simplify right side
    12,948,808.42x = 127,722,784,060,227.53
  5. Step 5: Solve for x
    x = 127,722,784,060,227.53/12,948,808.42
  6. Step 6: Final answer
    x = 9,863,670.84

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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.