Home / 79,911,776.64-119,867,723.28-19,327,560.96

Finding the Fourth Proportional to 79,911,776.64, 119,867,723.28 and 19,327,560.96

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Solution

The fourth proportional to 79,911,776.64, 119,867,723.28 and 19,327,560.96 is: 28,991,355.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,911,776.64 : 119,867,723.28 = 19,327,560.96 : x
  2. Step 2: Convert to fraction form
    79,911,776.64/119,867,723.28 = 19,327,560.96/x
  3. Step 3: Cross multiply
    79,911,776.64x = 119,867,723.28 × 19,327,560.96
  4. Step 4: Simplify right side
    79,911,776.64x = 2,316,750,728,830,611.50
  5. Step 5: Solve for x
    x = 2,316,750,728,830,611.50/79,911,776.64
  6. Step 6: Final answer
    x = 28,991,355.55

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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.