Home / 160,669,013-221,707,744.94-90,107,487.80

Finding the Fourth Proportional to 160,669,013, 221,707,744.94 and 90,107,487.80

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Solution

The fourth proportional to 160,669,013, 221,707,744.94 and 90,107,487.80 is: 124,339,644.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,669,013 : 221,707,744.94 = 90,107,487.80 : x
  2. Step 2: Convert to fraction form
    160,669,013/221,707,744.94 = 90,107,487.80/x
  3. Step 3: Cross multiply
    160,669,013x = 221,707,744.94 × 90,107,487.80
  4. Step 4: Simplify right side
    160,669,013x = 19,977,527,922,346,560
  5. Step 5: Solve for x
    x = 19,977,527,922,346,560/160,669,013
  6. Step 6: Final answer
    x = 124,339,644.27

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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.