Home / 210,984,076.80-316,324,972.80-81,480,844.80

Finding the Fourth Proportional to 210,984,076.80, 316,324,972.80 and 81,480,844.80

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Solution

The fourth proportional to 210,984,076.80, 316,324,972.80 and 81,480,844.80 is: 122,162,896.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,984,076.80 : 316,324,972.80 = 81,480,844.80 : x
  2. Step 2: Convert to fraction form
    210,984,076.80/316,324,972.80 = 81,480,844.80/x
  3. Step 3: Cross multiply
    210,984,076.80x = 316,324,972.80 × 81,480,844.80
  4. Step 4: Simplify right side
    210,984,076.80x = 25,774,426,015,081,020
  5. Step 5: Solve for x
    x = 25,774,426,015,081,020/210,984,076.80
  6. Step 6: Final answer
    x = 122,162,896.87

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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.