Home / 119,638,019.70-179,457,029.55-102,419,331.30

Finding the Fourth Proportional to 119,638,019.70, 179,457,029.55 and 102,419,331.30

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Solution

The fourth proportional to 119,638,019.70, 179,457,029.55 and 102,419,331.30 is: 153,628,996.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,638,019.70 : 179,457,029.55 = 102,419,331.30 : x
  2. Step 2: Convert to fraction form
    119,638,019.70/179,457,029.55 = 102,419,331.30/x
  3. Step 3: Cross multiply
    119,638,019.70x = 179,457,029.55 × 102,419,331.30
  4. Step 4: Simplify right side
    119,638,019.70x = 18,379,868,963,595,340
  5. Step 5: Solve for x
    x = 18,379,868,963,595,340/119,638,019.70
  6. Step 6: Final answer
    x = 153,628,996.95

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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.