Home / 12,486,376.20-18,724,898.70-4,911,774.60

Finding the Fourth Proportional to 12,486,376.20, 18,724,898.70 and 4,911,774.60

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Solution

The fourth proportional to 12,486,376.20, 18,724,898.70 and 4,911,774.60 is: 7,365,826.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,486,376.20 : 18,724,898.70 = 4,911,774.60 : x
  2. Step 2: Convert to fraction form
    12,486,376.20/18,724,898.70 = 4,911,774.60/x
  3. Step 3: Cross multiply
    12,486,376.20x = 18,724,898.70 × 4,911,774.60
  4. Step 4: Simplify right side
    12,486,376.20x = 91,972,481,822,233.02
  5. Step 5: Solve for x
    x = 91,972,481,822,233.02/12,486,376.20
  6. Step 6: Final answer
    x = 7,365,826.59

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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.