Home / 13,600,056.47-18,768,414.22-7,405,442.55

Finding the Fourth Proportional to 13,600,056.47, 18,768,414.22 and 7,405,442.55

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Solution

The fourth proportional to 13,600,056.47, 18,768,414.22 and 7,405,442.55 is: 10,219,693.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,600,056.47 : 18,768,414.22 = 7,405,442.55 : x
  2. Step 2: Convert to fraction form
    13,600,056.47/18,768,414.22 = 7,405,442.55/x
  3. Step 3: Cross multiply
    13,600,056.47x = 18,768,414.22 × 7,405,442.55
  4. Step 4: Simplify right side
    13,600,056.47x = 138,988,413,242,299.45
  5. Step 5: Solve for x
    x = 138,988,413,242,299.45/13,600,056.47
  6. Step 6: Final answer
    x = 10,219,693.84

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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.