Home / 20,533,935.78-30,831,182.67-11,453,774.22

Finding the Fourth Proportional to 20,533,935.78, 30,831,182.67 and 11,453,774.22

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Solution

The fourth proportional to 20,533,935.78, 30,831,182.67 and 11,453,774.22 is: 17,197,550.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,533,935.78 : 30,831,182.67 = 11,453,774.22 : x
  2. Step 2: Convert to fraction form
    20,533,935.78/30,831,182.67 = 11,453,774.22/x
  3. Step 3: Cross multiply
    20,533,935.78x = 30,831,182.67 × 11,453,774.22
  4. Step 4: Simplify right side
    20,533,935.78x = 353,133,405,237,756.81
  5. Step 5: Solve for x
    x = 353,133,405,237,756.81/20,533,935.78
  6. Step 6: Final answer
    x = 17,197,550.87

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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.