Home / 208,281,936.33-287,418,086.79-118,956,319.54

Finding the Fourth Proportional to 208,281,936.33, 287,418,086.79 and 118,956,319.54

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Solution

The fourth proportional to 208,281,936.33, 287,418,086.79 and 118,956,319.54 is: 164,153,446.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,281,936.33 : 287,418,086.79 = 118,956,319.54 : x
  2. Step 2: Convert to fraction form
    208,281,936.33/287,418,086.79 = 118,956,319.54/x
  3. Step 3: Cross multiply
    208,281,936.33x = 287,418,086.79 × 118,956,319.54
  4. Step 4: Simplify right side
    208,281,936.33x = 34,190,197,773,271,784
  5. Step 5: Solve for x
    x = 34,190,197,773,271,784/208,281,936.33
  6. Step 6: Final answer
    x = 164,153,446.89

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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.