Home / 312,175,089.37-468,109,406.03-154,425,841.18

Finding the Fourth Proportional to 312,175,089.37, 468,109,406.03 and 154,425,841.18

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Solution

The fourth proportional to 312,175,089.37, 468,109,406.03 and 154,425,841.18 is: 231,562,963.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,175,089.37 : 468,109,406.03 = 154,425,841.18 : x
  2. Step 2: Convert to fraction form
    312,175,089.37/468,109,406.03 = 154,425,841.18/x
  3. Step 3: Cross multiply
    312,175,089.37x = 468,109,406.03 × 154,425,841.18
  4. Step 4: Simplify right side
    312,175,089.37x = 72,288,188,790,693,776
  5. Step 5: Solve for x
    x = 72,288,188,790,693,776/312,175,089.37
  6. Step 6: Final answer
    x = 231,562,963.39

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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.