Home / 210,510,607.43-290,489,890.79-122,398,353.96

Finding the Fourth Proportional to 210,510,607.43, 290,489,890.79 and 122,398,353.96

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Solution

The fourth proportional to 210,510,607.43, 290,489,890.79 and 122,398,353.96 is: 168,901,153.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,510,607.43 : 290,489,890.79 = 122,398,353.96 : x
  2. Step 2: Convert to fraction form
    210,510,607.43/290,489,890.79 = 122,398,353.96/x
  3. Step 3: Cross multiply
    210,510,607.43x = 290,489,890.79 × 122,398,353.96
  4. Step 4: Simplify right side
    210,510,607.43x = 35,555,484,474,104,172
  5. Step 5: Solve for x
    x = 35,555,484,474,104,172/210,510,607.43
  6. Step 6: Final answer
    x = 168,901,153.77

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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.