Home / 189,430,400.80-261,413,943.12-102,510,272.80

Finding the Fourth Proportional to 189,430,400.80, 261,413,943.12 and 102,510,272.80

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Solution

The fourth proportional to 189,430,400.80, 261,413,943.12 and 102,510,272.80 is: 141,464,171.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,430,400.80 : 261,413,943.12 = 102,510,272.80 : x
  2. Step 2: Convert to fraction form
    189,430,400.80/261,413,943.12 = 102,510,272.80/x
  3. Step 3: Cross multiply
    189,430,400.80x = 261,413,943.12 × 102,510,272.80
  4. Step 4: Simplify right side
    189,430,400.80x = 26,797,614,622,954,884
  5. Step 5: Solve for x
    x = 26,797,614,622,954,884/189,430,400.80
  6. Step 6: Final answer
    x = 141,464,171.06

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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.