Home / 151,802,849.04-209,485,391.40-82,187,664.72

Finding the Fourth Proportional to 151,802,849.04, 209,485,391.40 and 82,187,664.72

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Solution

The fourth proportional to 151,802,849.04, 209,485,391.40 and 82,187,664.72 is: 113,417,601.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,802,849.04 : 209,485,391.40 = 82,187,664.72 : x
  2. Step 2: Convert to fraction form
    151,802,849.04/209,485,391.40 = 82,187,664.72/x
  3. Step 3: Cross multiply
    151,802,849.04x = 209,485,391.40 × 82,187,664.72
  4. Step 4: Simplify right side
    151,802,849.04x = 17,217,115,112,121,172
  5. Step 5: Solve for x
    x = 17,217,115,112,121,172/151,802,849.04
  6. Step 6: Final answer
    x = 113,417,601.98

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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.