Home / 108,809,373.20-163,214,059.80-74,371,996.40

Finding the Fourth Proportional to 108,809,373.20, 163,214,059.80 and 74,371,996.40

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Solution

The fourth proportional to 108,809,373.20, 163,214,059.80 and 74,371,996.40 is: 111,557,994.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,809,373.20 : 163,214,059.80 = 74,371,996.40 : x
  2. Step 2: Convert to fraction form
    108,809,373.20/163,214,059.80 = 74,371,996.40/x
  3. Step 3: Cross multiply
    108,809,373.20x = 163,214,059.80 × 74,371,996.40
  4. Step 4: Simplify right side
    108,809,373.20x = 12,138,555,467,874,986
  5. Step 5: Solve for x
    x = 12,138,555,467,874,986/108,809,373.20
  6. Step 6: Final answer
    x = 111,557,994.60

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Double scale
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Similar ratio
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1.5x scale

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.