Home / 143,697,149.06-198,302,145.27-77,617,647.02

Finding the Fourth Proportional to 143,697,149.06, 198,302,145.27 and 77,617,647.02

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Solution

The fourth proportional to 143,697,149.06, 198,302,145.27 and 77,617,647.02 is: 107,112,395.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,697,149.06 : 198,302,145.27 = 77,617,647.02 : x
  2. Step 2: Convert to fraction form
    143,697,149.06/198,302,145.27 = 77,617,647.02/x
  3. Step 3: Cross multiply
    143,697,149.06x = 198,302,145.27 × 77,617,647.02
  4. Step 4: Simplify right side
    143,697,149.06x = 15,391,745,914,875,622
  5. Step 5: Solve for x
    x = 15,391,745,914,875,622/143,697,149.06
  6. Step 6: Final answer
    x = 107,112,395.87

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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.