Home / 427,497,016.41-589,641,690.78-392,328,416.16

Finding the Fourth Proportional to 427,497,016.41, 589,641,690.78 and 392,328,416.16

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Solution

The fourth proportional to 427,497,016.41, 589,641,690.78 and 392,328,416.16 is: 541,134,047.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,497,016.41 : 589,641,690.78 = 392,328,416.16 : x
  2. Step 2: Convert to fraction form
    427,497,016.41/589,641,690.78 = 392,328,416.16/x
  3. Step 3: Cross multiply
    427,497,016.41x = 589,641,690.78 × 392,328,416.16
  4. Step 4: Simplify right side
    427,497,016.41x = 231,333,190,645,621,888
  5. Step 5: Solve for x
    x = 231,333,190,645,621,888/427,497,016.41
  6. Step 6: Final answer
    x = 541,134,047.18

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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.