Home / 642,639,822.08-886,861,661.40-364,172,086.40

Finding the Fourth Proportional to 642,639,822.08, 886,861,661.40 and 364,172,086.40

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Solution

The fourth proportional to 642,639,822.08, 886,861,661.40 and 364,172,086.40 is: 502,568,080.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,639,822.08 : 886,861,661.40 = 364,172,086.40 : x
  2. Step 2: Convert to fraction form
    642,639,822.08/886,861,661.40 = 364,172,086.40/x
  3. Step 3: Cross multiply
    642,639,822.08x = 886,861,661.40 × 364,172,086.40
  4. Step 4: Simplify right side
    642,639,822.08x = 322,970,261,580,208,320
  5. Step 5: Solve for x
    x = 322,970,261,580,208,320/642,639,822.08
  6. Step 6: Final answer
    x = 502,568,080.10

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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.