Home / 168,305,426.40-252,458,139.60-77,606,162.40

Finding the Fourth Proportional to 168,305,426.40, 252,458,139.60 and 77,606,162.40

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Solution

The fourth proportional to 168,305,426.40, 252,458,139.60 and 77,606,162.40 is: 116,409,243.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,305,426.40 : 252,458,139.60 = 77,606,162.40 : x
  2. Step 2: Convert to fraction form
    168,305,426.40/252,458,139.60 = 77,606,162.40/x
  3. Step 3: Cross multiply
    168,305,426.40x = 252,458,139.60 × 77,606,162.40
  4. Step 4: Simplify right side
    168,305,426.40x = 19,592,307,380,999,472
  5. Step 5: Solve for x
    x = 19,592,307,380,999,472/168,305,426.40
  6. Step 6: Final answer
    x = 116,409,243.60

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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.