Home / 13,508,899.16-18,641,919.84-7,707,575.48

Finding the Fourth Proportional to 13,508,899.16, 18,641,919.84 and 7,707,575.48

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Solution

The fourth proportional to 13,508,899.16, 18,641,919.84 and 7,707,575.48 is: 10,636,248.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,508,899.16 : 18,641,919.84 = 7,707,575.48 : x
  2. Step 2: Convert to fraction form
    13,508,899.16/18,641,919.84 = 7,707,575.48/x
  3. Step 3: Cross multiply
    13,508,899.16x = 18,641,919.84 × 7,707,575.48
  4. Step 4: Simplify right side
    13,508,899.16x = 143,684,004,258,909.53
  5. Step 5: Solve for x
    x = 143,684,004,258,909.53/13,508,899.16
  6. Step 6: Final answer
    x = 10,636,248.19

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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.