Home / 30,401,801.90-45,621,420.12-11,954,500.64

Finding the Fourth Proportional to 30,401,801.90, 45,621,420.12 and 11,954,500.64

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Solution

The fourth proportional to 30,401,801.90, 45,621,420.12 and 11,954,500.64 is: 17,939,110.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,401,801.90 : 45,621,420.12 = 11,954,500.64 : x
  2. Step 2: Convert to fraction form
    30,401,801.90/45,621,420.12 = 11,954,500.64/x
  3. Step 3: Cross multiply
    30,401,801.90x = 45,621,420.12 × 11,954,500.64
  4. Step 4: Simplify right side
    30,401,801.90x = 545,381,296,022,248.88
  5. Step 5: Solve for x
    x = 545,381,296,022,248.88/30,401,801.90
  6. Step 6: Final answer
    x = 17,939,110.91

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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.