Home / 66,072,227.10-99,108,340.65-20,638,614.30

Finding the Fourth Proportional to 66,072,227.10, 99,108,340.65 and 20,638,614.30

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Solution

The fourth proportional to 66,072,227.10, 99,108,340.65 and 20,638,614.30 is: 30,957,921.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,072,227.10 : 99,108,340.65 = 20,638,614.30 : x
  2. Step 2: Convert to fraction form
    66,072,227.10/99,108,340.65 = 20,638,614.30/x
  3. Step 3: Cross multiply
    66,072,227.10x = 99,108,340.65 × 20,638,614.30
  4. Step 4: Simplify right side
    66,072,227.10x = 2,045,458,816,588,361.50
  5. Step 5: Solve for x
    x = 2,045,458,816,588,361.50/66,072,227.10
  6. Step 6: Final answer
    x = 30,957,921.45

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Double scale
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Similar ratio
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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.