Home / 382,474,837.80-573,712,256.70-123,875,647.20

Finding the Fourth Proportional to 382,474,837.80, 573,712,256.70 and 123,875,647.20

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Solution

The fourth proportional to 382,474,837.80, 573,712,256.70 and 123,875,647.20 is: 185,813,470.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,474,837.80 : 573,712,256.70 = 123,875,647.20 : x
  2. Step 2: Convert to fraction form
    382,474,837.80/573,712,256.70 = 123,875,647.20/x
  3. Step 3: Cross multiply
    382,474,837.80x = 573,712,256.70 × 123,875,647.20
  4. Step 4: Simplify right side
    382,474,837.80x = 71,068,977,105,285,040
  5. Step 5: Solve for x
    x = 71,068,977,105,285,040/382,474,837.80
  6. Step 6: Final answer
    x = 185,813,470.80

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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.