Home / 20,362,561.70-28,100,889.45-11,070,756.98

Finding the Fourth Proportional to 20,362,561.70, 28,100,889.45 and 11,070,756.98

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Solution

The fourth proportional to 20,362,561.70, 28,100,889.45 and 11,070,756.98 is: 15,277,945.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,362,561.70 : 28,100,889.45 = 11,070,756.98 : x
  2. Step 2: Convert to fraction form
    20,362,561.70/28,100,889.45 = 11,070,756.98/x
  3. Step 3: Cross multiply
    20,362,561.70x = 28,100,889.45 × 11,070,756.98
  4. Step 4: Simplify right side
    20,362,561.70x = 311,098,117,882,291.38
  5. Step 5: Solve for x
    x = 311,098,117,882,291.38/20,362,561.70
  6. Step 6: Final answer
    x = 15,277,945.99

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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.