Home / 12,177,390.80-16,793,203.20-7,281,815.60

Finding the Fourth Proportional to 12,177,390.80, 16,793,203.20 and 7,281,815.60

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Solution

The fourth proportional to 12,177,390.80, 16,793,203.20 and 7,281,815.60 is: 10,041,971.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,177,390.80 : 16,793,203.20 = 7,281,815.60 : x
  2. Step 2: Convert to fraction form
    12,177,390.80/16,793,203.20 = 7,281,815.60/x
  3. Step 3: Cross multiply
    12,177,390.80x = 16,793,203.20 × 7,281,815.60
  4. Step 4: Simplify right side
    12,177,390.80x = 122,285,009,035,729.91
  5. Step 5: Solve for x
    x = 122,285,009,035,729.91/12,177,390.80
  6. Step 6: Final answer
    x = 10,041,971.31

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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.