Home / 12,776,417.20-19,157,627.40-5,194,817.20

Finding the Fourth Proportional to 12,776,417.20, 19,157,627.40 and 5,194,817.20

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Solution

The fourth proportional to 12,776,417.20, 19,157,627.40 and 5,194,817.20 is: 7,789,380.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,776,417.20 : 19,157,627.40 = 5,194,817.20 : x
  2. Step 2: Convert to fraction form
    12,776,417.20/19,157,627.40 = 5,194,817.20/x
  3. Step 3: Cross multiply
    12,776,417.20x = 19,157,627.40 × 5,194,817.20
  4. Step 4: Simplify right side
    12,776,417.20x = 99,520,372,328,711.28
  5. Step 5: Solve for x
    x = 99,520,372,328,711.28/12,776,417.20
  6. Step 6: Final answer
    x = 7,789,380.29

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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.