Home / 76,699,483.96-115,049,532.12-19,191,589.96

Finding the Fourth Proportional to 76,699,483.96, 115,049,532.12 and 19,191,589.96

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Solution

The fourth proportional to 76,699,483.96, 115,049,532.12 and 19,191,589.96 is: 28,787,461.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,699,483.96 : 115,049,532.12 = 19,191,589.96 : x
  2. Step 2: Convert to fraction form
    76,699,483.96/115,049,532.12 = 19,191,589.96/x
  3. Step 3: Cross multiply
    76,699,483.96x = 115,049,532.12 × 19,191,589.96
  4. Step 4: Simplify right side
    76,699,483.96x = 2,207,983,445,536,889.75
  5. Step 5: Solve for x
    x = 2,207,983,445,536,889.75/76,699,483.96
  6. Step 6: Final answer
    x = 28,787,461.55

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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.