Home / 20,687,804.70-31,045,703.85-9,322,403.10

Finding the Fourth Proportional to 20,687,804.70, 31,045,703.85 and 9,322,403.10

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Solution

The fourth proportional to 20,687,804.70, 31,045,703.85 and 9,322,403.10 is: 13,989,911.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,687,804.70 : 31,045,703.85 = 9,322,403.10 : x
  2. Step 2: Convert to fraction form
    20,687,804.70/31,045,703.85 = 9,322,403.10/x
  3. Step 3: Cross multiply
    20,687,804.70x = 31,045,703.85 × 9,322,403.10
  4. Step 4: Simplify right side
    20,687,804.70x = 289,420,565,812,921.94
  5. Step 5: Solve for x
    x = 289,420,565,812,921.94/20,687,804.70
  6. Step 6: Final answer
    x = 13,989,911.93

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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.