Home / 11,191,840.80-16,787,761.20-7,790,618.40

Finding the Fourth Proportional to 11,191,840.80, 16,787,761.20 and 7,790,618.40

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Solution

The fourth proportional to 11,191,840.80, 16,787,761.20 and 7,790,618.40 is: 11,685,927.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,191,840.80 : 16,787,761.20 = 7,790,618.40 : x
  2. Step 2: Convert to fraction form
    11,191,840.80/16,787,761.20 = 7,790,618.40/x
  3. Step 3: Cross multiply
    11,191,840.80x = 16,787,761.20 × 7,790,618.40
  4. Step 4: Simplify right side
    11,191,840.80x = 130,787,041,299,526.08
  5. Step 5: Solve for x
    x = 130,787,041,299,526.08/11,191,840.80
  6. Step 6: Final answer
    x = 11,685,927.60

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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.