Home / 640,519,496.10-958,866,056.55-381,601,440.90

Finding the Fourth Proportional to 640,519,496.10, 958,866,056.55 and 381,601,440.90

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Solution

The fourth proportional to 640,519,496.10, 958,866,056.55 and 381,601,440.90 is: 571,262,344.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,519,496.10 : 958,866,056.55 = 381,601,440.90 : x
  2. Step 2: Convert to fraction form
    640,519,496.10/958,866,056.55 = 381,601,440.90/x
  3. Step 3: Cross multiply
    640,519,496.10x = 958,866,056.55 × 381,601,440.90
  4. Step 4: Simplify right side
    640,519,496.10x = 365,904,668,809,580,864
  5. Step 5: Solve for x
    x = 365,904,668,809,580,864/640,519,496.10
  6. Step 6: Final answer
    x = 571,262,344.14

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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.