Home / 108,809,999.70-163,214,999.55-74,372,622.90

Finding the Fourth Proportional to 108,809,999.70, 163,214,999.55 and 74,372,622.90

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Solution

The fourth proportional to 108,809,999.70, 163,214,999.55 and 74,372,622.90 is: 111,558,934.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,809,999.70 : 163,214,999.55 = 74,372,622.90 : x
  2. Step 2: Convert to fraction form
    108,809,999.70/163,214,999.55 = 74,372,622.90/x
  3. Step 3: Cross multiply
    108,809,999.70x = 163,214,999.55 × 74,372,622.90
  4. Step 4: Simplify right side
    108,809,999.70x = 12,138,727,613,155,822
  5. Step 5: Solve for x
    x = 12,138,727,613,155,822/108,809,999.70
  6. Step 6: Final answer
    x = 111,558,934.35

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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.