Home / 135,992,193.98-187,699,518-86,422,902.21

Finding the Fourth Proportional to 135,992,193.98, 187,699,518 and 86,422,902.21

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Solution

The fourth proportional to 135,992,193.98, 187,699,518 and 86,422,902.21 is: 119,282,854.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,992,193.98 : 187,699,518 = 86,422,902.21 : x
  2. Step 2: Convert to fraction form
    135,992,193.98/187,699,518 = 86,422,902.21/x
  3. Step 3: Cross multiply
    135,992,193.98x = 187,699,518 × 86,422,902.21
  4. Step 4: Simplify right side
    135,992,193.98x = 16,221,537,088,978,134
  5. Step 5: Solve for x
    x = 16,221,537,088,978,134/135,992,193.98
  6. Step 6: Final answer
    x = 119,282,854.51

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1.5x scale

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.