Home / 5,215,791.72-7,819,164.54-2,018,717.40

Finding the Fourth Proportional to 5,215,791.72, 7,819,164.54 and 2,018,717.40

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Solution

The fourth proportional to 5,215,791.72, 7,819,164.54 and 2,018,717.40 is: 3,026,325.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,215,791.72 : 7,819,164.54 = 2,018,717.40 : x
  2. Step 2: Convert to fraction form
    5,215,791.72/7,819,164.54 = 2,018,717.40/x
  3. Step 3: Cross multiply
    5,215,791.72x = 7,819,164.54 × 2,018,717.40
  4. Step 4: Simplify right side
    5,215,791.72x = 15,784,683,510,361.00
  5. Step 5: Solve for x
    x = 15,784,683,510,361.00/5,215,791.72
  6. Step 6: Final answer
    x = 3,026,325.50

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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.