Home / 192,076,984.80-287,737,563.60-115,171,567.20

Finding the Fourth Proportional to 192,076,984.80, 287,737,563.60 and 115,171,567.20

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Solution

The fourth proportional to 192,076,984.80, 287,737,563.60 and 115,171,567.20 is: 172,530,749.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,076,984.80 : 287,737,563.60 = 115,171,567.20 : x
  2. Step 2: Convert to fraction form
    192,076,984.80/287,737,563.60 = 115,171,567.20/x
  3. Step 3: Cross multiply
    192,076,984.80x = 287,737,563.60 × 115,171,567.20
  4. Step 4: Simplify right side
    192,076,984.80x = 33,139,186,142,121,676
  5. Step 5: Solve for x
    x = 33,139,186,142,121,676/192,076,984.80
  6. Step 6: Final answer
    x = 172,530,749.46

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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.