Home / 315,076,003.71-434,400,685.41-258,351,760.80

Finding the Fourth Proportional to 315,076,003.71, 434,400,685.41 and 258,351,760.80

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Solution

The fourth proportional to 315,076,003.71, 434,400,685.41 and 258,351,760.80 is: 356,193,999.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,076,003.71 : 434,400,685.41 = 258,351,760.80 : x
  2. Step 2: Convert to fraction form
    315,076,003.71/434,400,685.41 = 258,351,760.80/x
  3. Step 3: Cross multiply
    315,076,003.71x = 434,400,685.41 × 258,351,760.80
  4. Step 4: Simplify right side
    315,076,003.71x = 112,228,181,968,400,384
  5. Step 5: Solve for x
    x = 112,228,181,968,400,384/315,076,003.71
  6. Step 6: Final answer
    x = 356,193,999.69

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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.