Home / 155,404,253.25-214,458,554.45-85,790,206.17

Finding the Fourth Proportional to 155,404,253.25, 214,458,554.45 and 85,790,206.17

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Solution

The fourth proportional to 155,404,253.25, 214,458,554.45 and 85,790,206.17 is: 118,390,862.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,404,253.25 : 214,458,554.45 = 85,790,206.17 : x
  2. Step 2: Convert to fraction form
    155,404,253.25/214,458,554.45 = 85,790,206.17/x
  3. Step 3: Cross multiply
    155,404,253.25x = 214,458,554.45 × 85,790,206.17
  4. Step 4: Simplify right side
    155,404,253.25x = 18,398,443,600,616,092
  5. Step 5: Solve for x
    x = 18,398,443,600,616,092/155,404,253.25
  6. Step 6: Final answer
    x = 118,390,862.65

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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.