Home / 8,160,172.80-12,240,259.20-4,912,915.20

Finding the Fourth Proportional to 8,160,172.80, 12,240,259.20 and 4,912,915.20

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Solution

The fourth proportional to 8,160,172.80, 12,240,259.20 and 4,912,915.20 is: 7,369,372.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,160,172.80 : 12,240,259.20 = 4,912,915.20 : x
  2. Step 2: Convert to fraction form
    8,160,172.80/12,240,259.20 = 4,912,915.20/x
  3. Step 3: Cross multiply
    8,160,172.80x = 12,240,259.20 × 4,912,915.20
  4. Step 4: Simplify right side
    8,160,172.80x = 60,135,355,475,619.84
  5. Step 5: Solve for x
    x = 60,135,355,475,619.84/8,160,172.80
  6. Step 6: Final answer
    x = 7,369,372.80

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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.