Home / 6,437,820.40-9,656,730.60-2,178,127.60

Finding the Fourth Proportional to 6,437,820.40, 9,656,730.60 and 2,178,127.60

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Solution

The fourth proportional to 6,437,820.40, 9,656,730.60 and 2,178,127.60 is: 3,267,191.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,437,820.40 : 9,656,730.60 = 2,178,127.60 : x
  2. Step 2: Convert to fraction form
    6,437,820.40/9,656,730.60 = 2,178,127.60/x
  3. Step 3: Cross multiply
    6,437,820.40x = 9,656,730.60 × 2,178,127.60
  4. Step 4: Simplify right side
    6,437,820.40x = 21,033,591,445,624.56
  5. Step 5: Solve for x
    x = 21,033,591,445,624.56/6,437,820.40
  6. Step 6: Final answer
    x = 3,267,191.40

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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.