Home / 10,078,532.80-15,108,847.04-3,929,096.96

Finding the Fourth Proportional to 10,078,532.80, 15,108,847.04 and 3,929,096.96

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Solution

The fourth proportional to 10,078,532.80, 15,108,847.04 and 3,929,096.96 is: 5,890,155.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,078,532.80 : 15,108,847.04 = 3,929,096.96 : x
  2. Step 2: Convert to fraction form
    10,078,532.80/15,108,847.04 = 3,929,096.96/x
  3. Step 3: Cross multiply
    10,078,532.80x = 15,108,847.04 × 3,929,096.96
  4. Step 4: Simplify right side
    10,078,532.80x = 59,364,124,973,968.99
  5. Step 5: Solve for x
    x = 59,364,124,973,968.99/10,078,532.80
  6. Step 6: Final answer
    x = 5,890,155.46

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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.