Home / 131,475,216.28-181,434,453.23-72,738,301.78

Finding the Fourth Proportional to 131,475,216.28, 181,434,453.23 and 72,738,301.78

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Solution

The fourth proportional to 131,475,216.28, 181,434,453.23 and 72,738,301.78 is: 100,378,112.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,475,216.28 : 181,434,453.23 = 72,738,301.78 : x
  2. Step 2: Convert to fraction form
    131,475,216.28/181,434,453.23 = 72,738,301.78/x
  3. Step 3: Cross multiply
    131,475,216.28x = 181,434,453.23 × 72,738,301.78
  4. Step 4: Simplify right side
    131,475,216.28x = 13,197,234,012,109,788
  5. Step 5: Solve for x
    x = 13,197,234,012,109,788/131,475,216.28
  6. Step 6: Final answer
    x = 100,378,112.21

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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.