Home / 13,291,636.64-18,345,871.10-8,656,970.54

Finding the Fourth Proportional to 13,291,636.64, 18,345,871.10 and 8,656,970.54

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Solution

The fourth proportional to 13,291,636.64, 18,345,871.10 and 8,656,970.54 is: 11,948,841.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,291,636.64 : 18,345,871.10 = 8,656,970.54 : x
  2. Step 2: Convert to fraction form
    13,291,636.64/18,345,871.10 = 8,656,970.54/x
  3. Step 3: Cross multiply
    13,291,636.64x = 18,345,871.10 × 8,656,970.54
  4. Step 4: Simplify right side
    13,291,636.64x = 158,819,665,573,250.47
  5. Step 5: Solve for x
    x = 158,819,665,573,250.47/13,291,636.64
  6. Step 6: Final answer
    x = 11,948,841.96

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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.