Home / 12,282,457.60-16,956,716.80-8,517,318.40

Finding the Fourth Proportional to 12,282,457.60, 16,956,716.80 and 8,517,318.40

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Solution

The fourth proportional to 12,282,457.60, 16,956,716.80 and 8,517,318.40 is: 11,758,701.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,282,457.60 : 16,956,716.80 = 8,517,318.40 : x
  2. Step 2: Convert to fraction form
    12,282,457.60/16,956,716.80 = 8,517,318.40/x
  3. Step 3: Cross multiply
    12,282,457.60x = 16,956,716.80 × 8,517,318.40
  4. Step 4: Simplify right side
    12,282,457.60x = 144,425,756,004,229.12
  5. Step 5: Solve for x
    x = 144,425,756,004,229.12/12,282,457.60
  6. Step 6: Final answer
    x = 11,758,701.78

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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.