Home / 12,379,539.60-18,569,309.40-8,600,403.60

Finding the Fourth Proportional to 12,379,539.60, 18,569,309.40 and 8,600,403.60

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Solution

The fourth proportional to 12,379,539.60, 18,569,309.40 and 8,600,403.60 is: 12,900,605.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,379,539.60 : 18,569,309.40 = 8,600,403.60 : x
  2. Step 2: Convert to fraction form
    12,379,539.60/18,569,309.40 = 8,600,403.60/x
  3. Step 3: Cross multiply
    12,379,539.60x = 18,569,309.40 × 8,600,403.60
  4. Step 4: Simplify right side
    12,379,539.60x = 159,703,555,413,273.81
  5. Step 5: Solve for x
    x = 159,703,555,413,273.81/12,379,539.60
  6. Step 6: Final answer
    x = 12,900,605.40

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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.