Home / 20,909,836.80-31,366,310.40-7,444,915.20

Finding the Fourth Proportional to 20,909,836.80, 31,366,310.40 and 7,444,915.20

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Solution

The fourth proportional to 20,909,836.80, 31,366,310.40 and 7,444,915.20 is: 11,167,926.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,909,836.80 : 31,366,310.40 = 7,444,915.20 : x
  2. Step 2: Convert to fraction form
    20,909,836.80/31,366,310.40 = 7,444,915.20/x
  3. Step 3: Cross multiply
    20,909,836.80x = 31,366,310.40 × 7,444,915.20
  4. Step 4: Simplify right side
    20,909,836.80x = 233,519,521,064,878.06
  5. Step 5: Solve for x
    x = 233,519,521,064,878.06/20,909,836.80
  6. Step 6: Final answer
    x = 11,167,926.53

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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.