Home / 208,086,929.96-287,159,863.48-124,455,059.12

Finding the Fourth Proportional to 208,086,929.96, 287,159,863.48 and 124,455,059.12

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Solution

The fourth proportional to 208,086,929.96, 287,159,863.48 and 124,455,059.12 is: 171,747,921.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,086,929.96 : 287,159,863.48 = 124,455,059.12 : x
  2. Step 2: Convert to fraction form
    208,086,929.96/287,159,863.48 = 124,455,059.12/x
  3. Step 3: Cross multiply
    208,086,929.96x = 287,159,863.48 × 124,455,059.12
  4. Step 4: Simplify right side
    208,086,929.96x = 35,738,497,786,701,296
  5. Step 5: Solve for x
    x = 35,738,497,786,701,296/208,086,929.96
  6. Step 6: Final answer
    x = 171,747,921.86

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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.