Home / 28,879,459.20-43,330,852.80-12,708,489.60

Finding the Fourth Proportional to 28,879,459.20, 43,330,852.80 and 12,708,489.60

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Solution

The fourth proportional to 28,879,459.20, 43,330,852.80 and 12,708,489.60 is: 19,067,867.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,879,459.20 : 43,330,852.80 = 12,708,489.60 : x
  2. Step 2: Convert to fraction form
    28,879,459.20/43,330,852.80 = 12,708,489.60/x
  3. Step 3: Cross multiply
    28,879,459.20x = 43,330,852.80 × 12,708,489.60
  4. Step 4: Simplify right side
    28,879,459.20x = 550,669,692,167,930.81
  5. Step 5: Solve for x
    x = 550,669,692,167,930.81/28,879,459.20
  6. Step 6: Final answer
    x = 19,067,867.18

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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.