Home / 38,620,401.77-53,296,173.96-21,217,867.76

Finding the Fourth Proportional to 38,620,401.77, 53,296,173.96 and 21,217,867.76

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Solution

The fourth proportional to 38,620,401.77, 53,296,173.96 and 21,217,867.76 is: 29,280,668.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,620,401.77 : 53,296,173.96 = 21,217,867.76 : x
  2. Step 2: Convert to fraction form
    38,620,401.77/53,296,173.96 = 21,217,867.76/x
  3. Step 3: Cross multiply
    38,620,401.77x = 53,296,173.96 × 21,217,867.76
  4. Step 4: Simplify right side
    38,620,401.77x = 1,130,831,171,197,235.75
  5. Step 5: Solve for x
    x = 1,130,831,171,197,235.75/38,620,401.77
  6. Step 6: Final answer
    x = 29,280,668.23

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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.