Home / 7,738,895.21-10,679,811.20-4,254,380.86

Finding the Fourth Proportional to 7,738,895.21, 10,679,811.20 and 4,254,380.86

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Solution

The fourth proportional to 7,738,895.21, 10,679,811.20 and 4,254,380.86 is: 5,871,120.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,738,895.21 : 10,679,811.20 = 4,254,380.86 : x
  2. Step 2: Convert to fraction form
    7,738,895.21/10,679,811.20 = 4,254,380.86/x
  3. Step 3: Cross multiply
    7,738,895.21x = 10,679,811.20 × 4,254,380.86
  4. Step 4: Simplify right side
    7,738,895.21x = 45,435,984,318,714.19
  5. Step 5: Solve for x
    x = 45,435,984,318,714.19/7,738,895.21
  6. Step 6: Final answer
    x = 5,871,120.24

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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.