Home / 137,214,067.80-205,821,101.70-69,189,619.80

Finding the Fourth Proportional to 137,214,067.80, 205,821,101.70 and 69,189,619.80

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Solution

The fourth proportional to 137,214,067.80, 205,821,101.70 and 69,189,619.80 is: 103,784,429.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,214,067.80 : 205,821,101.70 = 69,189,619.80 : x
  2. Step 2: Convert to fraction form
    137,214,067.80/205,821,101.70 = 69,189,619.80/x
  3. Step 3: Cross multiply
    137,214,067.80x = 205,821,101.70 × 69,189,619.80
  4. Step 4: Simplify right side
    137,214,067.80x = 14,240,683,773,440,132
  5. Step 5: Solve for x
    x = 14,240,683,773,440,132/137,214,067.80
  6. Step 6: Final answer
    x = 103,784,429.70

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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.