Home / 149,172,179.06-205,859,739.82-85,602,877.57

Finding the Fourth Proportional to 149,172,179.06, 205,859,739.82 and 85,602,877.57

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Solution

The fourth proportional to 149,172,179.06, 205,859,739.82 and 85,602,877.57 is: 118,133,194.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,172,179.06 : 205,859,739.82 = 85,602,877.57 : x
  2. Step 2: Convert to fraction form
    149,172,179.06/205,859,739.82 = 85,602,877.57/x
  3. Step 3: Cross multiply
    149,172,179.06x = 205,859,739.82 × 85,602,877.57
  4. Step 4: Simplify right side
    149,172,179.06x = 17,622,186,103,374,214
  5. Step 5: Solve for x
    x = 17,622,186,103,374,214/149,172,179.06
  6. Step 6: Final answer
    x = 118,133,194.91

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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.