Home / 30,077,665.79-45,038,797.82-20,758,575.56

Finding the Fourth Proportional to 30,077,665.79, 45,038,797.82 and 20,758,575.56

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Solution

The fourth proportional to 30,077,665.79, 45,038,797.82 and 20,758,575.56 is: 31,084,236.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,077,665.79 : 45,038,797.82 = 20,758,575.56 : x
  2. Step 2: Convert to fraction form
    30,077,665.79/45,038,797.82 = 20,758,575.56/x
  3. Step 3: Cross multiply
    30,077,665.79x = 45,038,797.82 × 20,758,575.56
  4. Step 4: Simplify right side
    30,077,665.79x = 934,941,287,764,682.12
  5. Step 5: Solve for x
    x = 934,941,287,764,682.12/30,077,665.79
  6. Step 6: Final answer
    x = 31,084,236.86

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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.