Home / 151,781,141.08-209,457,930.54-82,166,470.84

Finding the Fourth Proportional to 151,781,141.08, 209,457,930.54 and 82,166,470.84

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Solution

The fourth proportional to 151,781,141.08, 209,457,930.54 and 82,166,470.84 is: 113,389,705.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,781,141.08 : 209,457,930.54 = 82,166,470.84 : x
  2. Step 2: Convert to fraction form
    151,781,141.08/209,457,930.54 = 82,166,470.84/x
  3. Step 3: Cross multiply
    151,781,141.08x = 209,457,930.54 × 82,166,470.84
  4. Step 4: Simplify right side
    151,781,141.08x = 17,210,418,941,921,656
  5. Step 5: Solve for x
    x = 17,210,418,941,921,656/151,781,141.08
  6. Step 6: Final answer
    x = 113,389,705.86

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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.