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Finding the Fourth Proportional to 8,964,007.20, 13,460,007.60 and 5,184,871.20

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Solution

The fourth proportional to 8,964,007.20, 13,460,007.60 and 5,184,871.20 is: 7,785,402.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,964,007.20 : 13,460,007.60 = 5,184,871.20 : x
  2. Step 2: Convert to fraction form
    8,964,007.20/13,460,007.60 = 5,184,871.20/x
  3. Step 3: Cross multiply
    8,964,007.20x = 13,460,007.60 × 5,184,871.20
  4. Step 4: Simplify right side
    8,964,007.20x = 69,788,405,757,021.12
  5. Step 5: Solve for x
    x = 69,788,405,757,021.12/8,964,007.20
  6. Step 6: Final answer
    x = 7,785,402.69

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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.