Home / 66,128,551.80-99,193,144.68-20,070,821.04

Finding the Fourth Proportional to 66,128,551.80, 99,193,144.68 and 20,070,821.04

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Solution

The fourth proportional to 66,128,551.80, 99,193,144.68 and 20,070,821.04 is: 30,106,327.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,128,551.80 : 99,193,144.68 = 20,070,821.04 : x
  2. Step 2: Convert to fraction form
    66,128,551.80/99,193,144.68 = 20,070,821.04/x
  3. Step 3: Cross multiply
    66,128,551.80x = 99,193,144.68 × 20,070,821.04
  4. Step 4: Simplify right side
    66,128,551.80x = 1,990,887,855,267,108
  5. Step 5: Solve for x
    x = 1,990,887,855,267,108/66,128,551.80
  6. Step 6: Final answer
    x = 30,106,327.77

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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.