Home / 125,493,585.31-172,998,626-87,699,409.39

Finding the Fourth Proportional to 125,493,585.31, 172,998,626 and 87,699,409.39

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Solution

The fourth proportional to 125,493,585.31, 172,998,626 and 87,699,409.39 is: 120,897,632.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,493,585.31 : 172,998,626 = 87,699,409.39 : x
  2. Step 2: Convert to fraction form
    125,493,585.31/172,998,626 = 87,699,409.39/x
  3. Step 3: Cross multiply
    125,493,585.31x = 172,998,626 × 87,699,409.39
  4. Step 4: Simplify right side
    125,493,585.31x = 15,171,877,325,481,498
  5. Step 5: Solve for x
    x = 15,171,877,325,481,498/125,493,585.31
  6. Step 6: Final answer
    x = 120,897,632.24

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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.