Home / 131,471,389.60-196,829,170.80-80,453,053.60

Finding the Fourth Proportional to 131,471,389.60, 196,829,170.80 and 80,453,053.60

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Solution

The fourth proportional to 131,471,389.60, 196,829,170.80 and 80,453,053.60 is: 120,448,318.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,471,389.60 : 196,829,170.80 = 80,453,053.60 : x
  2. Step 2: Convert to fraction form
    131,471,389.60/196,829,170.80 = 80,453,053.60/x
  3. Step 3: Cross multiply
    131,471,389.60x = 196,829,170.80 × 80,453,053.60
  4. Step 4: Simplify right side
    131,471,389.60x = 15,835,507,828,415,954
  5. Step 5: Solve for x
    x = 15,835,507,828,415,954/131,471,389.60
  6. Step 6: Final answer
    x = 120,448,318.65

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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.