Home / 383,818,970.80-575,728,456.20-189,760,337.20

Finding the Fourth Proportional to 383,818,970.80, 575,728,456.20 and 189,760,337.20

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Solution

The fourth proportional to 383,818,970.80, 575,728,456.20 and 189,760,337.20 is: 284,640,505.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,818,970.80 : 575,728,456.20 = 189,760,337.20 : x
  2. Step 2: Convert to fraction form
    383,818,970.80/575,728,456.20 = 189,760,337.20/x
  3. Step 3: Cross multiply
    383,818,970.80x = 575,728,456.20 × 189,760,337.20
  4. Step 4: Simplify right side
    383,818,970.80x = 109,250,425,984,147,440
  5. Step 5: Solve for x
    x = 109,250,425,984,147,440/383,818,970.80
  6. Step 6: Final answer
    x = 284,640,505.80

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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.