Home / 208,159,622.16-287,259,996.84-115,346,140.56

Finding the Fourth Proportional to 208,159,622.16, 287,259,996.84 and 115,346,140.56

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Solution

The fourth proportional to 208,159,622.16, 287,259,996.84 and 115,346,140.56 is: 159,177,517.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,159,622.16 : 287,259,996.84 = 115,346,140.56 : x
  2. Step 2: Convert to fraction form
    208,159,622.16/287,259,996.84 = 115,346,140.56/x
  3. Step 3: Cross multiply
    208,159,622.16x = 287,259,996.84 × 115,346,140.56
  4. Step 4: Simplify right side
    208,159,622.16x = 33,134,331,972,771,792
  5. Step 5: Solve for x
    x = 33,134,331,972,771,792/208,159,622.16
  6. Step 6: Final answer
    x = 159,177,517.85

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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.