Home / 210,510,580.85-290,489,853.94-122,398,327.34

Finding the Fourth Proportional to 210,510,580.85, 290,489,853.94 and 122,398,327.34

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Solution

The fourth proportional to 210,510,580.85, 290,489,853.94 and 122,398,327.34 is: 168,901,116.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,510,580.85 : 290,489,853.94 = 122,398,327.34 : x
  2. Step 2: Convert to fraction form
    210,510,580.85/290,489,853.94 = 122,398,327.34/x
  3. Step 3: Cross multiply
    210,510,580.85x = 290,489,853.94 × 122,398,327.34
  4. Step 4: Simplify right side
    210,510,580.85x = 35,555,472,229,738,460
  5. Step 5: Solve for x
    x = 35,555,472,229,738,460/210,510,580.85
  6. Step 6: Final answer
    x = 168,901,116.93

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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.