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Finding the Fourth Proportional to 8,660,471.10, 12,993,817.05 and 8,349,431.10

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Solution

The fourth proportional to 8,660,471.10, 12,993,817.05 and 8,349,431.10 is: 12,527,145.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,660,471.10 : 12,993,817.05 = 8,349,431.10 : x
  2. Step 2: Convert to fraction form
    8,660,471.10/12,993,817.05 = 8,349,431.10/x
  3. Step 3: Cross multiply
    8,660,471.10x = 12,993,817.05 × 8,349,431.10
  4. Step 4: Simplify right side
    8,660,471.10x = 108,490,980,184,980.25
  5. Step 5: Solve for x
    x = 108,490,980,184,980.25/8,660,471.10
  6. Step 6: Final answer
    x = 12,527,145.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.