Home / 210,561,632.03-315,997,593.83-99,897,704.30

Finding the Fourth Proportional to 210,561,632.03, 315,997,593.83 and 99,897,704.30

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Solution

The fourth proportional to 210,561,632.03, 315,997,593.83 and 99,897,704.30 is: 149,920,162.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,561,632.03 : 315,997,593.83 = 99,897,704.30 : x
  2. Step 2: Convert to fraction form
    210,561,632.03/315,997,593.83 = 99,897,704.30/x
  3. Step 3: Cross multiply
    210,561,632.03x = 315,997,593.83 × 99,897,704.30
  4. Step 4: Simplify right side
    210,561,632.03x = 31,567,434,188,605,968
  5. Step 5: Solve for x
    x = 31,567,434,188,605,968/210,561,632.03
  6. Step 6: Final answer
    x = 149,920,162.97

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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.