Home / 13,508,779.76-18,641,421.24-7,396,025.84

Finding the Fourth Proportional to 13,508,779.76, 18,641,421.24 and 7,396,025.84

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Solution

The fourth proportional to 13,508,779.76, 18,641,421.24 and 7,396,025.84 is: 10,206,135.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,508,779.76 : 18,641,421.24 = 7,396,025.84 : x
  2. Step 2: Convert to fraction form
    13,508,779.76/18,641,421.24 = 7,396,025.84/x
  3. Step 3: Cross multiply
    13,508,779.76x = 18,641,421.24 × 7,396,025.84
  4. Step 4: Simplify right side
    13,508,779.76x = 137,872,433,185,364.83
  5. Step 5: Solve for x
    x = 137,872,433,185,364.83/13,508,779.76
  6. Step 6: Final answer
    x = 10,206,135.24

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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.