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Finding the Fourth Proportional to 13,596,047.20, 20,394,070.80 and 10,236,815.20

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Solution

The fourth proportional to 13,596,047.20, 20,394,070.80 and 10,236,815.20 is: 15,355,222.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,596,047.20 : 20,394,070.80 = 10,236,815.20 : x
  2. Step 2: Convert to fraction form
    13,596,047.20/20,394,070.80 = 10,236,815.20/x
  3. Step 3: Cross multiply
    13,596,047.20x = 20,394,070.80 × 10,236,815.20
  4. Step 4: Simplify right side
    13,596,047.20x = 208,770,333,955,316.16
  5. Step 5: Solve for x
    x = 208,770,333,955,316.16/13,596,047.20
  6. Step 6: Final answer
    x = 15,355,222.80

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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.