Home / 131,856,559.40-197,868,819.90-77,269,039.40

Finding the Fourth Proportional to 131,856,559.40, 197,868,819.90 and 77,269,039.40

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Solution

The fourth proportional to 131,856,559.40, 197,868,819.90 and 77,269,039.40 is: 115,952,772.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,856,559.40 : 197,868,819.90 = 77,269,039.40 : x
  2. Step 2: Convert to fraction form
    131,856,559.40/197,868,819.90 = 77,269,039.40/x
  3. Step 3: Cross multiply
    131,856,559.40x = 197,868,819.90 × 77,269,039.40
  4. Step 4: Simplify right side
    131,856,559.40x = 15,289,133,640,884,606
  5. Step 5: Solve for x
    x = 15,289,133,640,884,606/131,856,559.40
  6. Step 6: Final answer
    x = 115,952,772.55

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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.