Home / 479,280,176.04-661,356,234.90-278,297,763.48

Finding the Fourth Proportional to 479,280,176.04, 661,356,234.90 and 278,297,763.48

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Solution

The fourth proportional to 479,280,176.04, 661,356,234.90 and 278,297,763.48 is: 384,021,643.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,280,176.04 : 661,356,234.90 = 278,297,763.48 : x
  2. Step 2: Convert to fraction form
    479,280,176.04/661,356,234.90 = 278,297,763.48/x
  3. Step 3: Cross multiply
    479,280,176.04x = 661,356,234.90 × 278,297,763.48
  4. Step 4: Simplify right side
    479,280,176.04x = 184,053,961,036,223,520
  5. Step 5: Solve for x
    x = 184,053,961,036,223,520/479,280,176.04
  6. Step 6: Final answer
    x = 384,021,643.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.