Home / 220,531,010.85-330,292,631.48-129,831,746.85

Finding the Fourth Proportional to 220,531,010.85, 330,292,631.48 and 129,831,746.85

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Solution

The fourth proportional to 220,531,010.85, 330,292,631.48 and 129,831,746.85 is: 194,450,971.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,531,010.85 : 330,292,631.48 = 129,831,746.85 : x
  2. Step 2: Convert to fraction form
    220,531,010.85/330,292,631.48 = 129,831,746.85/x
  3. Step 3: Cross multiply
    220,531,010.85x = 330,292,631.48 × 129,831,746.85
  4. Step 4: Simplify right side
    220,531,010.85x = 42,882,469,316,082,544
  5. Step 5: Solve for x
    x = 42,882,469,316,082,544/220,531,010.85
  6. Step 6: Final answer
    x = 194,450,971.55

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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.