Home / 51,119,191.62-76,678,789.09-12,780,705.72

Finding the Fourth Proportional to 51,119,191.62, 76,678,789.09 and 12,780,705.72

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Solution

The fourth proportional to 51,119,191.62, 76,678,789.09 and 12,780,705.72 is: 19,171,059.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,119,191.62 : 76,678,789.09 = 12,780,705.72 : x
  2. Step 2: Convert to fraction form
    51,119,191.62/76,678,789.09 = 12,780,705.72/x
  3. Step 3: Cross multiply
    51,119,191.62x = 76,678,789.09 × 12,780,705.72
  4. Step 4: Simplify right side
    51,119,191.62x = 980,009,038,325,236.75
  5. Step 5: Solve for x
    x = 980,009,038,325,236.75/51,119,191.62
  6. Step 6: Final answer
    x = 19,171,059.00

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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.