Home / 5,188,881.28-7,776,570.74-2,111,285.50

Finding the Fourth Proportional to 5,188,881.28, 7,776,570.74 and 2,111,285.50

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Solution

The fourth proportional to 5,188,881.28, 7,776,570.74 and 2,111,285.50 is: 3,164,181.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,188,881.28 : 7,776,570.74 = 2,111,285.50 : x
  2. Step 2: Convert to fraction form
    5,188,881.28/7,776,570.74 = 2,111,285.50/x
  3. Step 3: Cross multiply
    5,188,881.28x = 7,776,570.74 × 2,111,285.50
  4. Step 4: Simplify right side
    5,188,881.28x = 16,418,561,004,203.42
  5. Step 5: Solve for x
    x = 16,418,561,004,203.42/5,188,881.28
  6. Step 6: Final answer
    x = 3,164,181.28

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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.