Home / 28,776,621.60-43,164,932.40-20,745,957.60

Finding the Fourth Proportional to 28,776,621.60, 43,164,932.40 and 20,745,957.60

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Solution

The fourth proportional to 28,776,621.60, 43,164,932.40 and 20,745,957.60 is: 31,118,936.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,776,621.60 : 43,164,932.40 = 20,745,957.60 : x
  2. Step 2: Convert to fraction form
    28,776,621.60/43,164,932.40 = 20,745,957.60/x
  3. Step 3: Cross multiply
    28,776,621.60x = 43,164,932.40 × 20,745,957.60
  4. Step 4: Simplify right side
    28,776,621.60x = 895,497,857,377,266.25
  5. Step 5: Solve for x
    x = 895,497,857,377,266.25/28,776,621.60
  6. Step 6: Final answer
    x = 31,118,936.40

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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.