Home / 113,185,185.60-169,777,778.40-90,510,369.60

Finding the Fourth Proportional to 113,185,185.60, 169,777,778.40 and 90,510,369.60

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Solution

The fourth proportional to 113,185,185.60, 169,777,778.40 and 90,510,369.60 is: 135,765,554.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,185,185.60 : 169,777,778.40 = 90,510,369.60 : x
  2. Step 2: Convert to fraction form
    113,185,185.60/169,777,778.40 = 90,510,369.60/x
  3. Step 3: Cross multiply
    113,185,185.60x = 169,777,778.40 × 90,510,369.60
  4. Step 4: Simplify right side
    113,185,185.60x = 15,366,649,472,850,896
  5. Step 5: Solve for x
    x = 15,366,649,472,850,896/113,185,185.60
  6. Step 6: Final answer
    x = 135,765,554.40

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1.5x scale

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.