Home / 13,610,920.15-18,782,833.31-7,416,017.78

Finding the Fourth Proportional to 13,610,920.15, 18,782,833.31 and 7,416,017.78

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Solution

The fourth proportional to 13,610,920.15, 18,782,833.31 and 7,416,017.78 is: 10,233,975.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,610,920.15 : 18,782,833.31 = 7,416,017.78 : x
  2. Step 2: Convert to fraction form
    13,610,920.15/18,782,833.31 = 7,416,017.78/x
  3. Step 3: Cross multiply
    13,610,920.15x = 18,782,833.31 × 7,416,017.78
  4. Step 4: Simplify right side
    13,610,920.15x = 139,293,825,661,690.81
  5. Step 5: Solve for x
    x = 139,293,825,661,690.81/13,610,920.15
  6. Step 6: Final answer
    x = 10,233,975.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.