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Finding the Fourth Proportional to 6,649,006.21, 9,973,512.05 and 1,600,316.71

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Solution

The fourth proportional to 6,649,006.21, 9,973,512.05 and 1,600,316.71 is: 2,400,475.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,649,006.21 : 9,973,512.05 = 1,600,316.71 : x
  2. Step 2: Convert to fraction form
    6,649,006.21/9,973,512.05 = 1,600,316.71/x
  3. Step 3: Cross multiply
    6,649,006.21x = 9,973,512.05 × 1,600,316.71
  4. Step 4: Simplify right side
    6,649,006.21x = 15,960,777,991,001.36
  5. Step 5: Solve for x
    x = 15,960,777,991,001.36/6,649,006.21
  6. Step 6: Final answer
    x = 2,400,475.72

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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.