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Finding the Fourth Proportional to 98,361,010.80, 147,541,516.20 and 30,207,092.40

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Solution

The fourth proportional to 98,361,010.80, 147,541,516.20 and 30,207,092.40 is: 45,310,638.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,361,010.80 : 147,541,516.20 = 30,207,092.40 : x
  2. Step 2: Convert to fraction form
    98,361,010.80/147,541,516.20 = 30,207,092.40/x
  3. Step 3: Cross multiply
    98,361,010.80x = 147,541,516.20 × 30,207,092.40
  4. Step 4: Simplify right side
    98,361,010.80x = 4,456,800,212,689,496.50
  5. Step 5: Solve for x
    x = 4,456,800,212,689,496.50/98,361,010.80
  6. Step 6: Final answer
    x = 45,310,638.60

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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.