Home / 15,886,678.48-21,921,862.12-8,915,757.19

Finding the Fourth Proportional to 15,886,678.48, 21,921,862.12 and 8,915,757.19

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Solution

The fourth proportional to 15,886,678.48, 21,921,862.12 and 8,915,757.19 is: 12,302,760.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,886,678.48 : 21,921,862.12 = 8,915,757.19 : x
  2. Step 2: Convert to fraction form
    15,886,678.48/21,921,862.12 = 8,915,757.19/x
  3. Step 3: Cross multiply
    15,886,678.48x = 21,921,862.12 × 8,915,757.19
  4. Step 4: Simplify right side
    15,886,678.48x = 195,449,999,682,679.94
  5. Step 5: Solve for x
    x = 195,449,999,682,679.94/15,886,678.48
  6. Step 6: Final answer
    x = 12,302,760.45

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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.