Home / 20,687,025.89-31,009,247.51-9,177,913.28

Finding the Fourth Proportional to 20,687,025.89, 31,009,247.51 and 9,177,913.28

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Solution

The fourth proportional to 20,687,025.89, 31,009,247.51 and 9,177,913.28 is: 13,757,423.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,687,025.89 : 31,009,247.51 = 9,177,913.28 : x
  2. Step 2: Convert to fraction form
    20,687,025.89/31,009,247.51 = 9,177,913.28/x
  3. Step 3: Cross multiply
    20,687,025.89x = 31,009,247.51 × 9,177,913.28
  4. Step 4: Simplify right side
    20,687,025.89x = 284,600,184,323,900.12
  5. Step 5: Solve for x
    x = 284,600,184,323,900.12/20,687,025.89
  6. Step 6: Final answer
    x = 13,757,423.90

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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.