Home / 685,229,288.62-945,617,617.90-371,963,714.80

Finding the Fourth Proportional to 685,229,288.62, 945,617,617.90 and 371,963,714.80

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Solution

The fourth proportional to 685,229,288.62, 945,617,617.90 and 371,963,714.80 is: 513,310,577.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,229,288.62 : 945,617,617.90 = 371,963,714.80 : x
  2. Step 2: Convert to fraction form
    685,229,288.62/945,617,617.90 = 371,963,714.80/x
  3. Step 3: Cross multiply
    685,229,288.62x = 945,617,617.90 × 371,963,714.80
  4. Step 4: Simplify right side
    685,229,288.62x = 351,735,441,934,411,008
  5. Step 5: Solve for x
    x = 351,735,441,934,411,008/685,229,288.62
  6. Step 6: Final answer
    x = 513,310,577.61

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1.5x scale

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.