Home / 139,131,036.90-208,696,555.35-135,942,390.90

Finding the Fourth Proportional to 139,131,036.90, 208,696,555.35 and 135,942,390.90

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Solution

The fourth proportional to 139,131,036.90, 208,696,555.35 and 135,942,390.90 is: 203,913,586.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,131,036.90 : 208,696,555.35 = 135,942,390.90 : x
  2. Step 2: Convert to fraction form
    139,131,036.90/208,696,555.35 = 135,942,390.90/x
  3. Step 3: Cross multiply
    139,131,036.90x = 208,696,555.35 × 135,942,390.90
  4. Step 4: Simplify right side
    139,131,036.90x = 28,370,708,706,873,188
  5. Step 5: Solve for x
    x = 28,370,708,706,873,188/139,131,036.90
  6. Step 6: Final answer
    x = 203,913,586.35

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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.