Home / 18,870,440.81-28,300,984.07-8,086,518.77

Finding the Fourth Proportional to 18,870,440.81, 28,300,984.07 and 8,086,518.77

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Solution

The fourth proportional to 18,870,440.81, 28,300,984.07 and 8,086,518.77 is: 12,127,773.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,870,440.81 : 28,300,984.07 = 8,086,518.77 : x
  2. Step 2: Convert to fraction form
    18,870,440.81/28,300,984.07 = 8,086,518.77/x
  3. Step 3: Cross multiply
    18,870,440.81x = 28,300,984.07 × 8,086,518.77
  4. Step 4: Simplify right side
    18,870,440.81x = 228,856,438,709,588.47
  5. Step 5: Solve for x
    x = 228,856,438,709,588.47/18,870,440.81
  6. Step 6: Final answer
    x = 12,127,773.86

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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.