Home / 66,521,973.58-99,783,205.98-20,463,523.64

Finding the Fourth Proportional to 66,521,973.58, 99,783,205.98 and 20,463,523.64

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Solution

The fourth proportional to 66,521,973.58, 99,783,205.98 and 20,463,523.64 is: 30,695,361.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,521,973.58 : 99,783,205.98 = 20,463,523.64 : x
  2. Step 2: Convert to fraction form
    66,521,973.58/99,783,205.98 = 20,463,523.64/x
  3. Step 3: Cross multiply
    66,521,973.58x = 99,783,205.98 × 20,463,523.64
  4. Step 4: Simplify right side
    66,521,973.58x = 2,041,915,994,921,640
  5. Step 5: Solve for x
    x = 2,041,915,994,921,640/66,521,973.58
  6. Step 6: Final answer
    x = 30,695,361.02

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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.