Home / 421,300,456.20-631,950,684.30-370,282,120.20

Finding the Fourth Proportional to 421,300,456.20, 631,950,684.30 and 370,282,120.20

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Solution

The fourth proportional to 421,300,456.20, 631,950,684.30 and 370,282,120.20 is: 555,423,180.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,300,456.20 : 631,950,684.30 = 370,282,120.20 : x
  2. Step 2: Convert to fraction form
    421,300,456.20/631,950,684.30 = 370,282,120.20/x
  3. Step 3: Cross multiply
    421,300,456.20x = 631,950,684.30 × 370,282,120.20
  4. Step 4: Simplify right side
    421,300,456.20x = 234,000,039,244,444,832
  5. Step 5: Solve for x
    x = 234,000,039,244,444,832/421,300,456.20
  6. Step 6: Final answer
    x = 555,423,180.30

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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.