Home / 8,898,328.91-12,279,790.62-5,227,400.21

Finding the Fourth Proportional to 8,898,328.91, 12,279,790.62 and 5,227,400.21

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Solution

The fourth proportional to 8,898,328.91, 12,279,790.62 and 5,227,400.21 is: 7,213,869.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,898,328.91 : 12,279,790.62 = 5,227,400.21 : x
  2. Step 2: Convert to fraction form
    8,898,328.91/12,279,790.62 = 5,227,400.21/x
  3. Step 3: Cross multiply
    8,898,328.91x = 12,279,790.62 × 5,227,400.21
  4. Step 4: Simplify right side
    8,898,328.91x = 64,191,380,004,345.07
  5. Step 5: Solve for x
    x = 64,191,380,004,345.07/8,898,328.91
  6. Step 6: Final answer
    x = 7,213,869.10

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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.