Home / 20,405,612.72-30,607,533.72-7,626,228.56

Finding the Fourth Proportional to 20,405,612.72, 30,607,533.72 and 7,626,228.56

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Solution

The fourth proportional to 20,405,612.72, 30,607,533.72 and 7,626,228.56 is: 11,439,011.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,405,612.72 : 30,607,533.72 = 7,626,228.56 : x
  2. Step 2: Convert to fraction form
    20,405,612.72/30,607,533.72 = 7,626,228.56/x
  3. Step 3: Cross multiply
    20,405,612.72x = 30,607,533.72 × 7,626,228.56
  4. Step 4: Simplify right side
    20,405,612.72x = 233,420,047,806,627.03
  5. Step 5: Solve for x
    x = 233,420,047,806,627.03/20,405,612.72
  6. Step 6: Final answer
    x = 11,439,011.95

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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.