Home / 13,390,188.10-18,478,241.85-7,278,770.50

Finding the Fourth Proportional to 13,390,188.10, 18,478,241.85 and 7,278,770.50

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Solution

The fourth proportional to 13,390,188.10, 18,478,241.85 and 7,278,770.50 is: 10,044,584.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,390,188.10 : 18,478,241.85 = 7,278,770.50 : x
  2. Step 2: Convert to fraction form
    13,390,188.10/18,478,241.85 = 7,278,770.50/x
  3. Step 3: Cross multiply
    13,390,188.10x = 18,478,241.85 × 7,278,770.50
  4. Step 4: Simplify right side
    13,390,188.10x = 134,498,881,669,645.44
  5. Step 5: Solve for x
    x = 134,498,881,669,645.44/13,390,188.10
  6. Step 6: Final answer
    x = 10,044,584.94

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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.