Home / 1,288,904,156.48-1,933,960,896.48-642,722,288.96

Finding the Fourth Proportional to 1,288,904,156.48, 1,933,960,896.48 and 642,722,288.96

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Solution

The fourth proportional to 1,288,904,156.48, 1,933,960,896.48 and 642,722,288.96 is: 964,384,952.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,904,156.48 : 1,933,960,896.48 = 642,722,288.96 : x
  2. Step 2: Convert to fraction form
    1,288,904,156.48/1,933,960,896.48 = 642,722,288.96/x
  3. Step 3: Cross multiply
    1,288,904,156.48x = 1,933,960,896.48 × 642,722,288.96
  4. Step 4: Simplify right side
    1,288,904,156.48x = 1,242,999,774,144,759,296
  5. Step 5: Solve for x
    x = 1,242,999,774,144,759,296/1,288,904,156.48
  6. Step 6: Final answer
    x = 964,384,952.83

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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.