Home / 5,228,967.78-7,216,150.76-2,905,958.21

Finding the Fourth Proportional to 5,228,967.78, 7,216,150.76 and 2,905,958.21

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Solution

The fourth proportional to 5,228,967.78, 7,216,150.76 and 2,905,958.21 is: 4,010,319.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,228,967.78 : 7,216,150.76 = 2,905,958.21 : x
  2. Step 2: Convert to fraction form
    5,228,967.78/7,216,150.76 = 2,905,958.21/x
  3. Step 3: Cross multiply
    5,228,967.78x = 7,216,150.76 × 2,905,958.21
  4. Step 4: Simplify right side
    5,228,967.78x = 20,969,832,495,009.20
  5. Step 5: Solve for x
    x = 20,969,832,495,009.20/5,228,967.78
  6. Step 6: Final answer
    x = 4,010,319.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.