Home / 28,977,653.85-39,988,328.72-15,924,896.97

Finding the Fourth Proportional to 28,977,653.85, 39,988,328.72 and 15,924,896.97

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Solution

The fourth proportional to 28,977,653.85, 39,988,328.72 and 15,924,896.97 is: 21,975,899.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,977,653.85 : 39,988,328.72 = 15,924,896.97 : x
  2. Step 2: Convert to fraction form
    28,977,653.85/39,988,328.72 = 15,924,896.97/x
  3. Step 3: Cross multiply
    28,977,653.85x = 39,988,328.72 × 15,924,896.97
  4. Step 4: Simplify right side
    28,977,653.85x = 636,810,014,788,867.62
  5. Step 5: Solve for x
    x = 636,810,014,788,867.62/28,977,653.85
  6. Step 6: Final answer
    x = 21,975,899.71

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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.