Home / 11,191,647.80-16,787,471.70-7,790,425.40

Finding the Fourth Proportional to 11,191,647.80, 16,787,471.70 and 7,790,425.40

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Solution

The fourth proportional to 11,191,647.80, 16,787,471.70 and 7,790,425.40 is: 11,685,638.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,191,647.80 : 16,787,471.70 = 7,790,425.40 : x
  2. Step 2: Convert to fraction form
    11,191,647.80/16,787,471.70 = 7,790,425.40/x
  3. Step 3: Cross multiply
    11,191,647.80x = 16,787,471.70 × 7,790,425.40
  4. Step 4: Simplify right side
    11,191,647.80x = 130,781,545,933,461.19
  5. Step 5: Solve for x
    x = 130,781,545,933,461.19/11,191,647.80
  6. Step 6: Final answer
    x = 11,685,638.10

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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.