Home / 705,111,215.20-1,057,666,822.80-378,593,864.80

Finding the Fourth Proportional to 705,111,215.20, 1,057,666,822.80 and 378,593,864.80

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Solution

The fourth proportional to 705,111,215.20, 1,057,666,822.80 and 378,593,864.80 is: 567,890,797.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,111,215.20 : 1,057,666,822.80 = 378,593,864.80 : x
  2. Step 2: Convert to fraction form
    705,111,215.20/1,057,666,822.80 = 378,593,864.80/x
  3. Step 3: Cross multiply
    705,111,215.20x = 1,057,666,822.80 × 378,593,864.80
  4. Step 4: Simplify right side
    705,111,215.20x = 400,426,170,114,588,736
  5. Step 5: Solve for x
    x = 400,426,170,114,588,736/705,111,215.20
  6. Step 6: Final answer
    x = 567,890,797.20

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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.