Home / 640,667,860.50-960,904,691.81-174,365,621.46

Finding the Fourth Proportional to 640,667,860.50, 960,904,691.81 and 174,365,621.46

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Solution

The fourth proportional to 640,667,860.50, 960,904,691.81 and 174,365,621.46 is: 261,522,005.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,667,860.50 : 960,904,691.81 = 174,365,621.46 : x
  2. Step 2: Convert to fraction form
    640,667,860.50/960,904,691.81 = 174,365,621.46/x
  3. Step 3: Cross multiply
    640,667,860.50x = 960,904,691.81 × 174,365,621.46
  4. Step 4: Simplify right side
    640,667,860.50x = 167,548,743,751,280,416
  5. Step 5: Solve for x
    x = 167,548,743,751,280,416/640,667,860.50
  6. Step 6: Final answer
    x = 261,522,005.52

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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.