Home / 66,737,247.57-100,069,297.51-20,666,326.25

Finding the Fourth Proportional to 66,737,247.57, 100,069,297.51 and 20,666,326.25

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Solution

The fourth proportional to 66,737,247.57, 100,069,297.51 and 20,666,326.25 is: 30,988,163.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,737,247.57 : 100,069,297.51 = 20,666,326.25 : x
  2. Step 2: Convert to fraction form
    66,737,247.57/100,069,297.51 = 20,666,326.25/x
  3. Step 3: Cross multiply
    66,737,247.57x = 100,069,297.51 × 20,666,326.25
  4. Step 4: Simplify right side
    66,737,247.57x = 2,068,064,749,922,701.25
  5. Step 5: Solve for x
    x = 2,068,064,749,922,701.25/66,737,247.57
  6. Step 6: Final answer
    x = 30,988,163.66

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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.