Home / 68,166,745.19-102,401,453.40-42,278,178.10

Finding the Fourth Proportional to 68,166,745.19, 102,401,453.40 and 42,278,178.10

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Solution

The fourth proportional to 68,166,745.19, 102,401,453.40 and 42,278,178.10 is: 63,511,128.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,166,745.19 : 102,401,453.40 = 42,278,178.10 : x
  2. Step 2: Convert to fraction form
    68,166,745.19/102,401,453.40 = 42,278,178.10/x
  3. Step 3: Cross multiply
    68,166,745.19x = 102,401,453.40 × 42,278,178.10
  4. Step 4: Simplify right side
    68,166,745.19x = 4,329,346,883,820,652
  5. Step 5: Solve for x
    x = 4,329,346,883,820,652/68,166,745.19
  6. Step 6: Final answer
    x = 63,511,128.07

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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.