Home / 159,458,133.56-220,047,405.78-87,930,976.76

Finding the Fourth Proportional to 159,458,133.56, 220,047,405.78 and 87,930,976.76

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Solution

The fourth proportional to 159,458,133.56, 220,047,405.78 and 87,930,976.76 is: 121,342,090.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,458,133.56 : 220,047,405.78 = 87,930,976.76 : x
  2. Step 2: Convert to fraction form
    159,458,133.56/220,047,405.78 = 87,930,976.76/x
  3. Step 3: Cross multiply
    159,458,133.56x = 220,047,405.78 × 87,930,976.76
  4. Step 4: Simplify right side
    159,458,133.56x = 19,348,983,323,739,472
  5. Step 5: Solve for x
    x = 19,348,983,323,739,472/159,458,133.56
  6. Step 6: Final answer
    x = 121,342,090.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.