Home / 28,991,261.48-43,486,900.86-8,520,984.68

Finding the Fourth Proportional to 28,991,261.48, 43,486,900.86 and 8,520,984.68

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Solution

The fourth proportional to 28,991,261.48, 43,486,900.86 and 8,520,984.68 is: 12,781,479.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,991,261.48 : 43,486,900.86 = 8,520,984.68 : x
  2. Step 2: Convert to fraction form
    28,991,261.48/43,486,900.86 = 8,520,984.68/x
  3. Step 3: Cross multiply
    28,991,261.48x = 43,486,900.86 × 8,520,984.68
  4. Step 4: Simplify right side
    28,991,261.48x = 370,551,216,008,738.81
  5. Step 5: Solve for x
    x = 370,551,216,008,738.81/28,991,261.48
  6. Step 6: Final answer
    x = 12,781,479.56

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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.