Home / 8,120,419.02-12,179,770.20-4,280,703.12

Finding the Fourth Proportional to 8,120,419.02, 12,179,770.20 and 4,280,703.12

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Solution

The fourth proportional to 8,120,419.02, 12,179,770.20 and 4,280,703.12 is: 6,420,602.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,120,419.02 : 12,179,770.20 = 4,280,703.12 : x
  2. Step 2: Convert to fraction form
    8,120,419.02/12,179,770.20 = 4,280,703.12/x
  3. Step 3: Cross multiply
    8,120,419.02x = 12,179,770.20 × 4,280,703.12
  4. Step 4: Simplify right side
    8,120,419.02x = 52,137,980,296,023.02
  5. Step 5: Solve for x
    x = 52,137,980,296,023.02/8,120,419.02
  6. Step 6: Final answer
    x = 6,420,602.21

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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.