Home / 18,707,556.80-28,061,335.20-11,495,705.60

Finding the Fourth Proportional to 18,707,556.80, 28,061,335.20 and 11,495,705.60

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Solution

The fourth proportional to 18,707,556.80, 28,061,335.20 and 11,495,705.60 is: 17,243,558.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,707,556.80 : 28,061,335.20 = 11,495,705.60 : x
  2. Step 2: Convert to fraction form
    18,707,556.80/28,061,335.20 = 11,495,705.60/x
  3. Step 3: Cross multiply
    18,707,556.80x = 28,061,335.20 × 11,495,705.60
  4. Step 4: Simplify right side
    18,707,556.80x = 322,584,848,202,117.12
  5. Step 5: Solve for x
    x = 322,584,848,202,117.12/18,707,556.80
  6. Step 6: Final answer
    x = 17,243,558.40

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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.