Home / 8,790,784.78-12,124,613.70-7,701,165.34

Finding the Fourth Proportional to 8,790,784.78, 12,124,613.70 and 7,701,165.34

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Solution

The fourth proportional to 8,790,784.78, 12,124,613.70 and 7,701,165.34 is: 10,621,765.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,790,784.78 : 12,124,613.70 = 7,701,165.34 : x
  2. Step 2: Convert to fraction form
    8,790,784.78/12,124,613.70 = 7,701,165.34/x
  3. Step 3: Cross multiply
    8,790,784.78x = 12,124,613.70 × 7,701,165.34
  4. Step 4: Simplify right side
    8,790,784.78x = 93,373,654,787,329.16
  5. Step 5: Solve for x
    x = 93,373,654,787,329.16/8,790,784.78
  6. Step 6: Final answer
    x = 10,621,765.53

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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.