Home / 136,009,575.44-187,699,854.12-76,489,600.40

Finding the Fourth Proportional to 136,009,575.44, 187,699,854.12 and 76,489,600.40

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Solution

The fourth proportional to 136,009,575.44, 187,699,854.12 and 76,489,600.40 is: 105,559,382.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,009,575.44 : 187,699,854.12 = 76,489,600.40 : x
  2. Step 2: Convert to fraction form
    136,009,575.44/187,699,854.12 = 76,489,600.40/x
  3. Step 3: Cross multiply
    136,009,575.44x = 187,699,854.12 × 76,489,600.40
  4. Step 4: Simplify right side
    136,009,575.44x = 14,357,086,836,777,096
  5. Step 5: Solve for x
    x = 14,357,086,836,777,096/136,009,575.44
  6. Step 6: Final answer
    x = 105,559,382.79

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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.