Home / 8,076,390.40-12,131,433.60-6,816,678.40

Finding the Fourth Proportional to 8,076,390.40, 12,131,433.60 and 6,816,678.40

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Solution

The fourth proportional to 8,076,390.40, 12,131,433.60 and 6,816,678.40 is: 10,239,237.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,076,390.40 : 12,131,433.60 = 6,816,678.40 : x
  2. Step 2: Convert to fraction form
    8,076,390.40/12,131,433.60 = 6,816,678.40/x
  3. Step 3: Cross multiply
    8,076,390.40x = 12,131,433.60 × 6,816,678.40
  4. Step 4: Simplify right side
    8,076,390.40x = 82,696,081,382,154.23
  5. Step 5: Solve for x
    x = 82,696,081,382,154.23/8,076,390.40
  6. Step 6: Final answer
    x = 10,239,237.74

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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.