Home / 99,370,819.20-149,056,228.80-31,213,401.60

Finding the Fourth Proportional to 99,370,819.20, 149,056,228.80 and 31,213,401.60

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Solution

The fourth proportional to 99,370,819.20, 149,056,228.80 and 31,213,401.60 is: 46,820,102.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,370,819.20 : 149,056,228.80 = 31,213,401.60 : x
  2. Step 2: Convert to fraction form
    99,370,819.20/149,056,228.80 = 31,213,401.60/x
  3. Step 3: Cross multiply
    99,370,819.20x = 149,056,228.80 × 31,213,401.60
  4. Step 4: Simplify right side
    99,370,819.20x = 4,652,551,930,515,887
  5. Step 5: Solve for x
    x = 4,652,551,930,515,887/99,370,819.20
  6. Step 6: Final answer
    x = 46,820,102.40

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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.