Home / 113,322,830.40-169,984,245.60-90,648,014.40

Finding the Fourth Proportional to 113,322,830.40, 169,984,245.60 and 90,648,014.40

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Solution

The fourth proportional to 113,322,830.40, 169,984,245.60 and 90,648,014.40 is: 135,972,021.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,322,830.40 : 169,984,245.60 = 90,648,014.40 : x
  2. Step 2: Convert to fraction form
    113,322,830.40/169,984,245.60 = 90,648,014.40/x
  3. Step 3: Cross multiply
    113,322,830.40x = 169,984,245.60 × 90,648,014.40
  4. Step 4: Simplify right side
    113,322,830.40x = 15,408,734,342,921,938
  5. Step 5: Solve for x
    x = 15,408,734,342,921,938/113,322,830.40
  6. Step 6: Final answer
    x = 135,972,021.60

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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.