Home / 31,348,915.65-43,267,868.16-18,118,654.56

Finding the Fourth Proportional to 31,348,915.65, 43,267,868.16 and 18,118,654.56

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Solution

The fourth proportional to 31,348,915.65, 43,267,868.16 and 18,118,654.56 is: 25,007,421.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,348,915.65 : 43,267,868.16 = 18,118,654.56 : x
  2. Step 2: Convert to fraction form
    31,348,915.65/43,267,868.16 = 18,118,654.56/x
  3. Step 3: Cross multiply
    31,348,915.65x = 43,267,868.16 × 18,118,654.56
  4. Step 4: Simplify right side
    31,348,915.65x = 783,955,556,738,662.62
  5. Step 5: Solve for x
    x = 783,955,556,738,662.62/31,348,915.65
  6. Step 6: Final answer
    x = 25,007,421.80

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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.