Home / 30,519,883.90-42,107,023.20-18,913,212.46

Finding the Fourth Proportional to 30,519,883.90, 42,107,023.20 and 18,913,212.46

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Solution

The fourth proportional to 30,519,883.90, 42,107,023.20 and 18,913,212.46 is: 26,093,778.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,519,883.90 : 42,107,023.20 = 18,913,212.46 : x
  2. Step 2: Convert to fraction form
    30,519,883.90/42,107,023.20 = 18,913,212.46/x
  3. Step 3: Cross multiply
    30,519,883.90x = 42,107,023.20 × 18,913,212.46
  4. Step 4: Simplify right side
    30,519,883.90x = 796,379,075,839,749.12
  5. Step 5: Solve for x
    x = 796,379,075,839,749.12/30,519,883.90
  6. Step 6: Final answer
    x = 26,093,778.03

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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.