Home / 15,886,678.23-21,921,861.77-8,915,756.94

Finding the Fourth Proportional to 15,886,678.23, 21,921,861.77 and 8,915,756.94

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Solution

The fourth proportional to 15,886,678.23, 21,921,861.77 and 8,915,756.94 is: 12,302,760.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,886,678.23 : 21,921,861.77 = 8,915,756.94 : x
  2. Step 2: Convert to fraction form
    15,886,678.23/21,921,861.77 = 8,915,756.94/x
  3. Step 3: Cross multiply
    15,886,678.23x = 21,921,861.77 × 8,915,756.94
  4. Step 4: Simplify right side
    15,886,678.23x = 195,449,991,126,278.28
  5. Step 5: Solve for x
    x = 195,449,991,126,278.28/15,886,678.23
  6. Step 6: Final answer
    x = 12,302,760.11

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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.