Home / 10,780,512.60-16,170,768.90-8,371,313.40

Finding the Fourth Proportional to 10,780,512.60, 16,170,768.90 and 8,371,313.40

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Solution

The fourth proportional to 10,780,512.60, 16,170,768.90 and 8,371,313.40 is: 12,556,970.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,780,512.60 : 16,170,768.90 = 8,371,313.40 : x
  2. Step 2: Convert to fraction form
    10,780,512.60/16,170,768.90 = 8,371,313.40/x
  3. Step 3: Cross multiply
    10,780,512.60x = 16,170,768.90 × 8,371,313.40
  4. Step 4: Simplify right side
    10,780,512.60x = 135,370,574,380,873.27
  5. Step 5: Solve for x
    x = 135,370,574,380,873.27/10,780,512.60
  6. Step 6: Final answer
    x = 12,556,970.10

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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.