Home / 13,555,178.56-18,705,635.58-7,360,091.38

Finding the Fourth Proportional to 13,555,178.56, 18,705,635.58 and 7,360,091.38

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Solution

The fourth proportional to 13,555,178.56, 18,705,635.58 and 7,360,091.38 is: 10,156,648.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,555,178.56 : 18,705,635.58 = 7,360,091.38 : x
  2. Step 2: Convert to fraction form
    13,555,178.56/18,705,635.58 = 7,360,091.38/x
  3. Step 3: Cross multiply
    13,555,178.56x = 18,705,635.58 × 7,360,091.38
  4. Step 4: Simplify right side
    13,555,178.56x = 137,675,187,189,779.28
  5. Step 5: Solve for x
    x = 137,675,187,189,779.28/13,555,178.56
  6. Step 6: Final answer
    x = 10,156,648.74

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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.