Home / 15,320,999.86-21,143,125.16-8,445,727.96

Finding the Fourth Proportional to 15,320,999.86, 21,143,125.16 and 8,445,727.96

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Solution

The fourth proportional to 15,320,999.86, 21,143,125.16 and 8,445,727.96 is: 11,655,184.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,320,999.86 : 21,143,125.16 = 8,445,727.96 : x
  2. Step 2: Convert to fraction form
    15,320,999.86/21,143,125.16 = 8,445,727.96/x
  3. Step 3: Cross multiply
    15,320,999.86x = 21,143,125.16 × 8,445,727.96
  4. Step 4: Simplify right side
    15,320,999.86x = 178,569,083,325,591.50
  5. Step 5: Solve for x
    x = 178,569,083,325,591.50/15,320,999.86
  6. Step 6: Final answer
    x = 11,655,184.71

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1.5x scale

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.