Home / 12,551,281.88-18,837,010.36-6,487,789.75

Finding the Fourth Proportional to 12,551,281.88, 18,837,010.36 and 6,487,789.75

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Solution

The fourth proportional to 12,551,281.88, 18,837,010.36 and 6,487,789.75 is: 9,736,898.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,551,281.88 : 18,837,010.36 = 6,487,789.75 : x
  2. Step 2: Convert to fraction form
    12,551,281.88/18,837,010.36 = 6,487,789.75/x
  3. Step 3: Cross multiply
    12,551,281.88x = 18,837,010.36 × 6,487,789.75
  4. Step 4: Simplify right side
    12,551,281.88x = 122,210,562,734,251.81
  5. Step 5: Solve for x
    x = 122,210,562,734,251.81/12,551,281.88
  6. Step 6: Final answer
    x = 9,736,898.90

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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.