Home / 418,699,476.09-628,117,436.12-123,624,423.42

Finding the Fourth Proportional to 418,699,476.09, 628,117,436.12 and 123,624,423.42

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Solution

The fourth proportional to 418,699,476.09, 628,117,436.12 and 123,624,423.42 is: 185,456,778.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,699,476.09 : 628,117,436.12 = 123,624,423.42 : x
  2. Step 2: Convert to fraction form
    418,699,476.09/628,117,436.12 = 123,624,423.42/x
  3. Step 3: Cross multiply
    418,699,476.09x = 628,117,436.12 × 123,624,423.42
  4. Step 4: Simplify right side
    418,699,476.09x = 77,650,655,879,765,568
  5. Step 5: Solve for x
    x = 77,650,655,879,765,568/418,699,476.09
  6. Step 6: Final answer
    x = 185,456,778.22

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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.