Home / 66,912,265.05-100,351,372.17-20,845,547.49

Finding the Fourth Proportional to 66,912,265.05, 100,351,372.17 and 20,845,547.49

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Solution

The fourth proportional to 66,912,265.05, 100,351,372.17 and 20,845,547.49 is: 31,263,017.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,912,265.05 : 100,351,372.17 = 20,845,547.49 : x
  2. Step 2: Convert to fraction form
    66,912,265.05/100,351,372.17 = 20,845,547.49/x
  3. Step 3: Cross multiply
    66,912,265.05x = 100,351,372.17 × 20,845,547.49
  4. Step 4: Simplify right side
    66,912,265.05x = 2,091,879,294,256,399.25
  5. Step 5: Solve for x
    x = 2,091,879,294,256,399.25/66,912,265.05
  6. Step 6: Final answer
    x = 31,263,017.22

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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.