Home / 159,503,164.85-220,108,925.62-87,978,880.79

Finding the Fourth Proportional to 159,503,164.85, 220,108,925.62 and 87,978,880.79

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Solution

The fourth proportional to 159,503,164.85, 220,108,925.62 and 87,978,880.79 is: 121,407,853.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,503,164.85 : 220,108,925.62 = 87,978,880.79 : x
  2. Step 2: Convert to fraction form
    159,503,164.85/220,108,925.62 = 87,978,880.79/x
  3. Step 3: Cross multiply
    159,503,164.85x = 220,108,925.62 × 87,978,880.79
  4. Step 4: Simplify right side
    159,503,164.85x = 19,364,936,927,936,960
  5. Step 5: Solve for x
    x = 19,364,936,927,936,960/159,503,164.85
  6. Step 6: Final answer
    x = 121,407,853.86

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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.