Home / 45,546,128.37-68,264,302.73-20,920,072.76

Finding the Fourth Proportional to 45,546,128.37, 68,264,302.73 and 20,920,072.76

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Solution

The fourth proportional to 45,546,128.37, 68,264,302.73 and 20,920,072.76 is: 31,354,897.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,546,128.37 : 68,264,302.73 = 20,920,072.76 : x
  2. Step 2: Convert to fraction form
    45,546,128.37/68,264,302.73 = 20,920,072.76/x
  3. Step 3: Cross multiply
    45,546,128.37x = 68,264,302.73 × 20,920,072.76
  4. Step 4: Simplify right side
    45,546,128.37x = 1,428,094,180,284,452.75
  5. Step 5: Solve for x
    x = 1,428,094,180,284,452.75/45,546,128.37
  6. Step 6: Final answer
    x = 31,354,897.36

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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.