Home / 140,709,427.70-194,179,028.90-77,989,570.54

Finding the Fourth Proportional to 140,709,427.70, 194,179,028.90 and 77,989,570.54

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Solution

The fourth proportional to 140,709,427.70, 194,179,028.90 and 77,989,570.54 is: 107,625,617.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,709,427.70 : 194,179,028.90 = 77,989,570.54 : x
  2. Step 2: Convert to fraction form
    140,709,427.70/194,179,028.90 = 77,989,570.54/x
  3. Step 3: Cross multiply
    140,709,427.70x = 194,179,028.90 × 77,989,570.54
  4. Step 4: Simplify right side
    140,709,427.70x = 15,143,939,070,909,852
  5. Step 5: Solve for x
    x = 15,143,939,070,909,852/140,709,427.70
  6. Step 6: Final answer
    x = 107,625,617.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.