Home / 9,207,920.43-12,709,380.90-5,439,284.16

Finding the Fourth Proportional to 9,207,920.43, 12,709,380.90 and 5,439,284.16

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Solution

The fourth proportional to 9,207,920.43, 12,709,380.90 and 5,439,284.16 is: 7,507,659.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,207,920.43 : 12,709,380.90 = 5,439,284.16 : x
  2. Step 2: Convert to fraction form
    9,207,920.43/12,709,380.90 = 5,439,284.16/x
  3. Step 3: Cross multiply
    9,207,920.43x = 12,709,380.90 × 5,439,284.16
  4. Step 4: Simplify right side
    9,207,920.43x = 69,129,934,185,513.69
  5. Step 5: Solve for x
    x = 69,129,934,185,513.69/9,207,920.43
  6. Step 6: Final answer
    x = 7,507,659.81

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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.