Home / 20,752,928.39-28,646,683.76-12,493,374.80

Finding the Fourth Proportional to 20,752,928.39, 28,646,683.76 and 12,493,374.80

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Solution

The fourth proportional to 20,752,928.39, 28,646,683.76 and 12,493,374.80 is: 17,245,458.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,752,928.39 : 28,646,683.76 = 12,493,374.80 : x
  2. Step 2: Convert to fraction form
    20,752,928.39/28,646,683.76 = 12,493,374.80/x
  3. Step 3: Cross multiply
    20,752,928.39x = 28,646,683.76 × 12,493,374.80
  4. Step 4: Simplify right side
    20,752,928.39x = 357,893,756,878,753.25
  5. Step 5: Solve for x
    x = 357,893,756,878,753.25/20,752,928.39
  6. Step 6: Final answer
    x = 17,245,458.09

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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.