Home / 20,687,028.64-31,009,251.62-9,177,916.02

Finding the Fourth Proportional to 20,687,028.64, 31,009,251.62 and 9,177,916.02

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Solution

The fourth proportional to 20,687,028.64, 31,009,251.62 and 9,177,916.02 is: 13,757,428.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,687,028.64 : 31,009,251.62 = 9,177,916.02 : x
  2. Step 2: Convert to fraction form
    20,687,028.64/31,009,251.62 = 9,177,916.02/x
  3. Step 3: Cross multiply
    20,687,028.64x = 31,009,251.62 × 9,177,916.02
  4. Step 4: Simplify right side
    20,687,028.64x = 284,600,307,211,408.94
  5. Step 5: Solve for x
    x = 284,600,307,211,408.94/20,687,028.64
  6. Step 6: Final answer
    x = 13,757,428.01

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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.