Home / 151,781,140.08-209,457,929.16-82,166,469.84

Finding the Fourth Proportional to 151,781,140.08, 209,457,929.16 and 82,166,469.84

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Solution

The fourth proportional to 151,781,140.08, 209,457,929.16 and 82,166,469.84 is: 113,389,704.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,781,140.08 : 209,457,929.16 = 82,166,469.84 : x
  2. Step 2: Convert to fraction form
    151,781,140.08/209,457,929.16 = 82,166,469.84/x
  3. Step 3: Cross multiply
    151,781,140.08x = 209,457,929.16 × 82,166,469.84
  4. Step 4: Simplify right side
    151,781,140.08x = 17,210,418,619,073,996
  5. Step 5: Solve for x
    x = 17,210,418,619,073,996/151,781,140.08
  6. Step 6: Final answer
    x = 113,389,704.48

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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.