Home / 642,639,812.16-886,861,647.52-364,172,076.48

Finding the Fourth Proportional to 642,639,812.16, 886,861,647.52 and 364,172,076.48

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Solution

The fourth proportional to 642,639,812.16, 886,861,647.52 and 364,172,076.48 is: 502,568,066.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,639,812.16 : 886,861,647.52 = 364,172,076.48 : x
  2. Step 2: Convert to fraction form
    642,639,812.16/886,861,647.52 = 364,172,076.48/x
  3. Step 3: Cross multiply
    642,639,812.16x = 886,861,647.52 × 364,172,076.48
  4. Step 4: Simplify right side
    642,639,812.16x = 322,970,247,727,832,256
  5. Step 5: Solve for x
    x = 322,970,247,727,832,256/642,639,812.16
  6. Step 6: Final answer
    x = 502,568,066.30

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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.