Home / 209,586,754.14-289,222,937.91-120,293,395.80

Finding the Fourth Proportional to 209,586,754.14, 289,222,937.91 and 120,293,395.80

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Solution

The fourth proportional to 209,586,754.14, 289,222,937.91 and 120,293,395.80 is: 166,000,993.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,586,754.14 : 289,222,937.91 = 120,293,395.80 : x
  2. Step 2: Convert to fraction form
    209,586,754.14/289,222,937.91 = 120,293,395.80/x
  3. Step 3: Cross multiply
    209,586,754.14x = 289,222,937.91 × 120,293,395.80
  4. Step 4: Simplify right side
    209,586,754.14x = 34,791,609,344,446,456
  5. Step 5: Solve for x
    x = 34,791,609,344,446,456/209,586,754.14
  6. Step 6: Final answer
    x = 166,000,993.18

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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.