Home / 5,216,415.40-7,824,623.10-1,429,892.20

Finding the Fourth Proportional to 5,216,415.40, 7,824,623.10 and 1,429,892.20

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Solution

The fourth proportional to 5,216,415.40, 7,824,623.10 and 1,429,892.20 is: 2,144,838.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,216,415.40 : 7,824,623.10 = 1,429,892.20 : x
  2. Step 2: Convert to fraction form
    5,216,415.40/7,824,623.10 = 1,429,892.20/x
  3. Step 3: Cross multiply
    5,216,415.40x = 7,824,623.10 × 1,429,892.20
  4. Step 4: Simplify right side
    5,216,415.40x = 11,188,367,538,629.82
  5. Step 5: Solve for x
    x = 11,188,367,538,629.82/5,216,415.40
  6. Step 6: Final answer
    x = 2,144,838.30

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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.