Home / 297,914,430.80-411,115,470.56-172,471,945.28

Finding the Fourth Proportional to 297,914,430.80, 411,115,470.56 and 172,471,945.28

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Solution

The fourth proportional to 297,914,430.80, 411,115,470.56 and 172,471,945.28 is: 238,007,553.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,914,430.80 : 411,115,470.56 = 172,471,945.28 : x
  2. Step 2: Convert to fraction form
    297,914,430.80/411,115,470.56 = 172,471,945.28/x
  3. Step 3: Cross multiply
    297,914,430.80x = 411,115,470.56 × 172,471,945.28
  4. Step 4: Simplify right side
    297,914,430.80x = 70,905,884,942,185,768
  5. Step 5: Solve for x
    x = 70,905,884,942,185,768/297,914,430.80
  6. Step 6: Final answer
    x = 238,007,553.89

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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.