Home / 210,096,821.70-315,145,232.55-207,227,040.30

Finding the Fourth Proportional to 210,096,821.70, 315,145,232.55 and 207,227,040.30

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Solution

The fourth proportional to 210,096,821.70, 315,145,232.55 and 207,227,040.30 is: 310,840,560.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,096,821.70 : 315,145,232.55 = 207,227,040.30 : x
  2. Step 2: Convert to fraction form
    210,096,821.70/315,145,232.55 = 207,227,040.30/x
  3. Step 3: Cross multiply
    210,096,821.70x = 315,145,232.55 × 207,227,040.30
  4. Step 4: Simplify right side
    210,096,821.70x = 65,306,613,805,991,728
  5. Step 5: Solve for x
    x = 65,306,613,805,991,728/210,096,821.70
  6. Step 6: Final answer
    x = 310,840,560.45

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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.