Home / 74,609,972.85-111,875,101.20-31,430,391.60

Finding the Fourth Proportional to 74,609,972.85, 111,875,101.20 and 31,430,391.60

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Solution

The fourth proportional to 74,609,972.85, 111,875,101.20 and 31,430,391.60 is: 47,128,796.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,609,972.85 : 111,875,101.20 = 31,430,391.60 : x
  2. Step 2: Convert to fraction form
    74,609,972.85/111,875,101.20 = 31,430,391.60/x
  3. Step 3: Cross multiply
    74,609,972.85x = 111,875,101.20 × 31,430,391.60
  4. Step 4: Simplify right side
    74,609,972.85x = 3,516,278,241,005,630
  5. Step 5: Solve for x
    x = 3,516,278,241,005,630/74,609,972.85
  6. Step 6: Final answer
    x = 47,128,796.68

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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.