Home / 66,725,140.80-100,087,711.20-40,897,108.20

Finding the Fourth Proportional to 66,725,140.80, 100,087,711.20 and 40,897,108.20

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Solution

The fourth proportional to 66,725,140.80, 100,087,711.20 and 40,897,108.20 is: 61,345,662.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,725,140.80 : 100,087,711.20 = 40,897,108.20 : x
  2. Step 2: Convert to fraction form
    66,725,140.80/100,087,711.20 = 40,897,108.20/x
  3. Step 3: Cross multiply
    66,725,140.80x = 100,087,711.20 × 40,897,108.20
  4. Step 4: Simplify right side
    66,725,140.80x = 4,093,297,954,436,752.50
  5. Step 5: Solve for x
    x = 4,093,297,954,436,752.50/66,725,140.80
  6. Step 6: Final answer
    x = 61,345,662.30

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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.