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Finding the Fourth Proportional to 6,649,007.21, 9,973,513.55 and 1,600,317.71

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Solution

The fourth proportional to 6,649,007.21, 9,973,513.55 and 1,600,317.71 is: 2,400,477.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,649,007.21 : 9,973,513.55 = 1,600,317.71 : x
  2. Step 2: Convert to fraction form
    6,649,007.21/9,973,513.55 = 1,600,317.71/x
  3. Step 3: Cross multiply
    6,649,007.21x = 9,973,513.55 × 1,600,317.71
  4. Step 4: Simplify right side
    6,649,007.21x = 15,960,790,364,989.97
  5. Step 5: Solve for x
    x = 15,960,790,364,989.97/6,649,007.21
  6. Step 6: Final answer
    x = 2,400,477.22

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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.