Home / 12,129,342.60-18,188,765.10-4,938,486.60

Finding the Fourth Proportional to 12,129,342.60, 18,188,765.10 and 4,938,486.60

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Solution

The fourth proportional to 12,129,342.60, 18,188,765.10 and 4,938,486.60 is: 7,405,592.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,129,342.60 : 18,188,765.10 = 4,938,486.60 : x
  2. Step 2: Convert to fraction form
    12,129,342.60/18,188,765.10 = 4,938,486.60/x
  3. Step 3: Cross multiply
    12,129,342.60x = 18,188,765.10 × 4,938,486.60
  4. Step 4: Simplify right side
    12,129,342.60x = 89,824,972,716,897.66
  5. Step 5: Solve for x
    x = 89,824,972,716,897.66/12,129,342.60
  6. Step 6: Final answer
    x = 7,405,592.84

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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.