Home / 10,643,611.40-15,965,417.10-8,517,847.40

Finding the Fourth Proportional to 10,643,611.40, 15,965,417.10 and 8,517,847.40

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Solution

The fourth proportional to 10,643,611.40, 15,965,417.10 and 8,517,847.40 is: 12,776,771.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,643,611.40 : 15,965,417.10 = 8,517,847.40 : x
  2. Step 2: Convert to fraction form
    10,643,611.40/15,965,417.10 = 8,517,847.40/x
  3. Step 3: Cross multiply
    10,643,611.40x = 15,965,417.10 × 8,517,847.40
  4. Step 4: Simplify right side
    10,643,611.40x = 135,990,986,535,150.55
  5. Step 5: Solve for x
    x = 135,990,986,535,150.55/10,643,611.40
  6. Step 6: Final answer
    x = 12,776,771.10

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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.