Home / 206,510,481.90-285,005,051.49-154,208,715.89

Finding the Fourth Proportional to 206,510,481.90, 285,005,051.49 and 154,208,715.89

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Solution

The fourth proportional to 206,510,481.90, 285,005,051.49 and 154,208,715.89 is: 212,823,400.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,510,481.90 : 285,005,051.49 = 154,208,715.89 : x
  2. Step 2: Convert to fraction form
    206,510,481.90/285,005,051.49 = 154,208,715.89/x
  3. Step 3: Cross multiply
    206,510,481.90x = 285,005,051.49 × 154,208,715.89
  4. Step 4: Simplify right side
    206,510,481.90x = 43,950,263,011,011,208
  5. Step 5: Solve for x
    x = 43,950,263,011,011,208/206,510,481.90
  6. Step 6: Final answer
    x = 212,823,400.57

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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.