Home / 10,780,518.10-16,170,777.15-8,371,318.90

Finding the Fourth Proportional to 10,780,518.10, 16,170,777.15 and 8,371,318.90

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Solution

The fourth proportional to 10,780,518.10, 16,170,777.15 and 8,371,318.90 is: 12,556,978.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,780,518.10 : 16,170,777.15 = 8,371,318.90 : x
  2. Step 2: Convert to fraction form
    10,780,518.10/16,170,777.15 = 8,371,318.90/x
  3. Step 3: Cross multiply
    10,780,518.10x = 16,170,777.15 × 8,371,318.90
  4. Step 4: Simplify right side
    10,780,518.10x = 135,370,732,383,483.14
  5. Step 5: Solve for x
    x = 135,370,732,383,483.14/10,780,518.10
  6. Step 6: Final answer
    x = 12,556,978.35

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1.5x scale

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.