Home / 108,872,016.80-163,308,025.20-74,383,901.60

Finding the Fourth Proportional to 108,872,016.80, 163,308,025.20 and 74,383,901.60

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Solution

The fourth proportional to 108,872,016.80, 163,308,025.20 and 74,383,901.60 is: 111,575,852.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,872,016.80 : 163,308,025.20 = 74,383,901.60 : x
  2. Step 2: Convert to fraction form
    108,872,016.80/163,308,025.20 = 74,383,901.60/x
  3. Step 3: Cross multiply
    108,872,016.80x = 163,308,025.20 × 74,383,901.60
  4. Step 4: Simplify right side
    108,872,016.80x = 12,147,488,076,967,118
  5. Step 5: Solve for x
    x = 12,147,488,076,967,118/108,872,016.80
  6. Step 6: Final answer
    x = 111,575,852.40

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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.