Home / 68,905,907.80-103,353,437.94-30,043,442.68

Finding the Fourth Proportional to 68,905,907.80, 103,353,437.94 and 30,043,442.68

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Solution

The fourth proportional to 68,905,907.80, 103,353,437.94 and 30,043,442.68 is: 45,062,799.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,905,907.80 : 103,353,437.94 = 30,043,442.68 : x
  2. Step 2: Convert to fraction form
    68,905,907.80/103,353,437.94 = 30,043,442.68/x
  3. Step 3: Cross multiply
    68,905,907.80x = 103,353,437.94 × 30,043,442.68
  4. Step 4: Simplify right side
    68,905,907.80x = 3,105,093,088,531,327
  5. Step 5: Solve for x
    x = 3,105,093,088,531,327/68,905,907.80
  6. Step 6: Final answer
    x = 45,062,799.22

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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.