Home / 139,910,310.72-209,804,515.80-74,317,094.46

Finding the Fourth Proportional to 139,910,310.72, 209,804,515.80 and 74,317,094.46

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Solution

The fourth proportional to 139,910,310.72, 209,804,515.80 and 74,317,094.46 is: 111,443,266.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,910,310.72 : 209,804,515.80 = 74,317,094.46 : x
  2. Step 2: Convert to fraction form
    139,910,310.72/209,804,515.80 = 74,317,094.46/x
  3. Step 3: Cross multiply
    139,910,310.72x = 209,804,515.80 × 74,317,094.46
  4. Step 4: Simplify right side
    139,910,310.72x = 15,592,062,018,843,162
  5. Step 5: Solve for x
    x = 15,592,062,018,843,162/139,910,310.72
  6. Step 6: Final answer
    x = 111,443,266.32

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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.