Home / 8,928,910.40-12,321,539.60-5,257,981.71

Finding the Fourth Proportional to 8,928,910.40, 12,321,539.60 and 5,257,981.71

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Solution

The fourth proportional to 8,928,910.40, 12,321,539.60 and 5,257,981.71 is: 7,255,804.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,928,910.40 : 12,321,539.60 = 5,257,981.71 : x
  2. Step 2: Convert to fraction form
    8,928,910.40/12,321,539.60 = 5,257,981.71/x
  3. Step 3: Cross multiply
    8,928,910.40x = 12,321,539.60 × 5,257,981.71
  4. Step 4: Simplify right side
    8,928,910.40x = 64,786,429,829,550.81
  5. Step 5: Solve for x
    x = 64,786,429,829,550.81/8,928,910.40
  6. Step 6: Final answer
    x = 7,255,804.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.