Home / 217,826,419.80-300,600,512.04-118,707,194.88

Finding the Fourth Proportional to 217,826,419.80, 300,600,512.04 and 118,707,194.88

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Solution

The fourth proportional to 217,826,419.80, 300,600,512.04 and 118,707,194.88 is: 163,815,957.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,826,419.80 : 300,600,512.04 = 118,707,194.88 : x
  2. Step 2: Convert to fraction form
    217,826,419.80/300,600,512.04 = 118,707,194.88/x
  3. Step 3: Cross multiply
    217,826,419.80x = 300,600,512.04 × 118,707,194.88
  4. Step 4: Simplify right side
    217,826,419.80x = 35,683,443,563,760,068
  5. Step 5: Solve for x
    x = 35,683,443,563,760,068/217,826,419.80
  6. Step 6: Final answer
    x = 163,815,957.66

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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.