Home / 28,879,461.20-43,330,855.80-12,708,491.60

Finding the Fourth Proportional to 28,879,461.20, 43,330,855.80 and 12,708,491.60

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Solution

The fourth proportional to 28,879,461.20, 43,330,855.80 and 12,708,491.60 is: 19,067,870.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,879,461.20 : 43,330,855.80 = 12,708,491.60 : x
  2. Step 2: Convert to fraction form
    28,879,461.20/43,330,855.80 = 12,708,491.60/x
  3. Step 3: Cross multiply
    28,879,461.20x = 43,330,855.80 × 12,708,491.60
  4. Step 4: Simplify right side
    28,879,461.20x = 550,669,816,955,111.25
  5. Step 5: Solve for x
    x = 550,669,816,955,111.25/28,879,461.20
  6. Step 6: Final answer
    x = 19,067,870.18

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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.