Home / 79,911,784.64-119,867,735.28-19,327,568.96

Finding the Fourth Proportional to 79,911,784.64, 119,867,735.28 and 19,327,568.96

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Solution

The fourth proportional to 79,911,784.64, 119,867,735.28 and 19,327,568.96 is: 28,991,367.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,911,784.64 : 119,867,735.28 = 19,327,568.96 : x
  2. Step 2: Convert to fraction form
    79,911,784.64/119,867,735.28 = 19,327,568.96/x
  3. Step 3: Cross multiply
    79,911,784.64x = 119,867,735.28 × 19,327,568.96
  4. Step 4: Simplify right side
    79,911,784.64x = 2,316,751,919,703,225
  5. Step 5: Solve for x
    x = 2,316,751,919,703,225/79,911,784.64
  6. Step 6: Final answer
    x = 28,991,367.55

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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.