Home / 393,984,005.40-590,976,008.10-372,820,843.80

Finding the Fourth Proportional to 393,984,005.40, 590,976,008.10 and 372,820,843.80

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Solution

The fourth proportional to 393,984,005.40, 590,976,008.10 and 372,820,843.80 is: 559,231,265.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,984,005.40 : 590,976,008.10 = 372,820,843.80 : x
  2. Step 2: Convert to fraction form
    393,984,005.40/590,976,008.10 = 372,820,843.80/x
  3. Step 3: Cross multiply
    393,984,005.40x = 590,976,008.10 × 372,820,843.80
  4. Step 4: Simplify right side
    393,984,005.40x = 220,328,174,005,397,664
  5. Step 5: Solve for x
    x = 220,328,174,005,397,664/393,984,005.40
  6. Step 6: Final answer
    x = 559,231,265.70

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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.