Home / 304,968,580.28-420,859,271.31-165,739,370.78

Finding the Fourth Proportional to 304,968,580.28, 420,859,271.31 and 165,739,370.78

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Solution

The fourth proportional to 304,968,580.28, 420,859,271.31 and 165,739,370.78 is: 228,721,761.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,968,580.28 : 420,859,271.31 = 165,739,370.78 : x
  2. Step 2: Convert to fraction form
    304,968,580.28/420,859,271.31 = 165,739,370.78/x
  3. Step 3: Cross multiply
    304,968,580.28x = 420,859,271.31 × 165,739,370.78
  4. Step 4: Simplify right side
    304,968,580.28x = 69,752,950,813,848,704
  5. Step 5: Solve for x
    x = 69,752,950,813,848,704/304,968,580.28
  6. Step 6: Final answer
    x = 228,721,761.27

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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.