Home / 28,974,449.78-39,985,058.96-15,921,712.07

Finding the Fourth Proportional to 28,974,449.78, 39,985,058.96 and 15,921,712.07

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Solution

The fourth proportional to 28,974,449.78, 39,985,058.96 and 15,921,712.07 is: 21,972,137.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,974,449.78 : 39,985,058.96 = 15,921,712.07 : x
  2. Step 2: Convert to fraction form
    28,974,449.78/39,985,058.96 = 15,921,712.07/x
  3. Step 3: Cross multiply
    28,974,449.78x = 39,985,058.96 × 15,921,712.07
  4. Step 4: Simplify right side
    28,974,449.78x = 636,630,595,583,559.75
  5. Step 5: Solve for x
    x = 636,630,595,583,559.75/28,974,449.78
  6. Step 6: Final answer
    x = 21,972,137.54

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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.