Home / 20,212,911.30-30,319,366.95-7,430,771.10

Finding the Fourth Proportional to 20,212,911.30, 30,319,366.95 and 7,430,771.10

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Solution

The fourth proportional to 20,212,911.30, 30,319,366.95 and 7,430,771.10 is: 11,146,156.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,212,911.30 : 30,319,366.95 = 7,430,771.10 : x
  2. Step 2: Convert to fraction form
    20,212,911.30/30,319,366.95 = 7,430,771.10/x
  3. Step 3: Cross multiply
    20,212,911.30x = 30,319,366.95 × 7,430,771.10
  4. Step 4: Simplify right side
    20,212,911.30x = 225,296,275,702,355.12
  5. Step 5: Solve for x
    x = 225,296,275,702,355.12/20,212,911.30
  6. Step 6: Final answer
    x = 11,146,156.65

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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.