Home / 20,736,082.40-31,104,123.60-7,274,271.20

Finding the Fourth Proportional to 20,736,082.40, 31,104,123.60 and 7,274,271.20

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Solution

The fourth proportional to 20,736,082.40, 31,104,123.60 and 7,274,271.20 is: 10,911,406.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,736,082.40 : 31,104,123.60 = 7,274,271.20 : x
  2. Step 2: Convert to fraction form
    20,736,082.40/31,104,123.60 = 7,274,271.20/x
  3. Step 3: Cross multiply
    20,736,082.40x = 31,104,123.60 × 7,274,271.20
  4. Step 4: Simplify right side
    20,736,082.40x = 226,259,830,504,720.34
  5. Step 5: Solve for x
    x = 226,259,830,504,720.34/20,736,082.40
  6. Step 6: Final answer
    x = 10,911,406.80

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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.