Home / 20,830,816.36-28,745,258.44-11,537,835.56

Finding the Fourth Proportional to 20,830,816.36, 28,745,258.44 and 11,537,835.56

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Solution

The fourth proportional to 20,830,816.36, 28,745,258.44 and 11,537,835.56 is: 15,921,510.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,830,816.36 : 28,745,258.44 = 11,537,835.56 : x
  2. Step 2: Convert to fraction form
    20,830,816.36/28,745,258.44 = 11,537,835.56/x
  3. Step 3: Cross multiply
    20,830,816.36x = 28,745,258.44 × 11,537,835.56
  4. Step 4: Simplify right side
    20,830,816.36x = 331,658,065,010,422.19
  5. Step 5: Solve for x
    x = 331,658,065,010,422.19/20,830,816.36
  6. Step 6: Final answer
    x = 15,921,510.67

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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.