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Finding the Fourth Proportional to 8,047,606.60, 12,071,409.90 and 7,151,811.40

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Solution

The fourth proportional to 8,047,606.60, 12,071,409.90 and 7,151,811.40 is: 10,727,717.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,047,606.60 : 12,071,409.90 = 7,151,811.40 : x
  2. Step 2: Convert to fraction form
    8,047,606.60/12,071,409.90 = 7,151,811.40/x
  3. Step 3: Cross multiply
    8,047,606.60x = 12,071,409.90 × 7,151,811.40
  4. Step 4: Simplify right side
    8,047,606.60x = 86,332,446,936,892.86
  5. Step 5: Solve for x
    x = 86,332,446,936,892.86/8,047,606.60
  6. Step 6: Final answer
    x = 10,727,717.10

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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.