Home / 149,172,176.31-205,859,736.02-85,602,874.82

Finding the Fourth Proportional to 149,172,176.31, 205,859,736.02 and 85,602,874.82

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Solution

The fourth proportional to 149,172,176.31, 205,859,736.02 and 85,602,874.82 is: 118,133,191.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,172,176.31 : 205,859,736.02 = 85,602,874.82 : x
  2. Step 2: Convert to fraction form
    149,172,176.31/205,859,736.02 = 85,602,874.82/x
  3. Step 3: Cross multiply
    149,172,176.31x = 205,859,736.02 × 85,602,874.82
  4. Step 4: Simplify right side
    149,172,176.31x = 17,622,185,212,183,014
  5. Step 5: Solve for x
    x = 17,622,185,212,183,014/149,172,176.31
  6. Step 6: Final answer
    x = 118,133,191.11

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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.