Home / 8,231,457.80-12,347,186.70-7,769,563.40

Finding the Fourth Proportional to 8,231,457.80, 12,347,186.70 and 7,769,563.40

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Solution

The fourth proportional to 8,231,457.80, 12,347,186.70 and 7,769,563.40 is: 11,654,345.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,231,457.80 : 12,347,186.70 = 7,769,563.40 : x
  2. Step 2: Convert to fraction form
    8,231,457.80/12,347,186.70 = 7,769,563.40/x
  3. Step 3: Cross multiply
    8,231,457.80x = 12,347,186.70 × 7,769,563.40
  4. Step 4: Simplify right side
    8,231,457.80x = 95,932,249,877,286.78
  5. Step 5: Solve for x
    x = 95,932,249,877,286.78/8,231,457.80
  6. Step 6: Final answer
    x = 11,654,345.10

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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.