Home / 179,712,140.80-269,568,211.20-72,084,006.40

Finding the Fourth Proportional to 179,712,140.80, 269,568,211.20 and 72,084,006.40

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Solution

The fourth proportional to 179,712,140.80, 269,568,211.20 and 72,084,006.40 is: 108,126,009.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,712,140.80 : 269,568,211.20 = 72,084,006.40 : x
  2. Step 2: Convert to fraction form
    179,712,140.80/269,568,211.20 = 72,084,006.40/x
  3. Step 3: Cross multiply
    179,712,140.80x = 269,568,211.20 × 72,084,006.40
  4. Step 4: Simplify right side
    179,712,140.80x = 19,431,556,661,377,352
  5. Step 5: Solve for x
    x = 19,431,556,661,377,352/179,712,140.80
  6. Step 6: Final answer
    x = 108,126,009.60

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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.