Home / 431,675,768.70-647,371,935.45-159,011,106.30

Finding the Fourth Proportional to 431,675,768.70, 647,371,935.45 and 159,011,106.30

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Solution

The fourth proportional to 431,675,768.70, 647,371,935.45 and 159,011,106.30 is: 238,464,456.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,675,768.70 : 647,371,935.45 = 159,011,106.30 : x
  2. Step 2: Convert to fraction form
    431,675,768.70/647,371,935.45 = 159,011,106.30/x
  3. Step 3: Cross multiply
    431,675,768.70x = 647,371,935.45 × 159,011,106.30
  4. Step 4: Simplify right side
    431,675,768.70x = 102,939,327,643,476,704
  5. Step 5: Solve for x
    x = 102,939,327,643,476,704/431,675,768.70
  6. Step 6: Final answer
    x = 238,464,456.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.