Home / 20,460,143.40-30,702,024.90-7,681,939.80

Finding the Fourth Proportional to 20,460,143.40, 30,702,024.90 and 7,681,939.80

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Solution

The fourth proportional to 20,460,143.40, 30,702,024.90 and 7,681,939.80 is: 11,527,343.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,460,143.40 : 30,702,024.90 = 7,681,939.80 : x
  2. Step 2: Convert to fraction form
    20,460,143.40/30,702,024.90 = 7,681,939.80/x
  3. Step 3: Cross multiply
    20,460,143.40x = 30,702,024.90 × 7,681,939.80
  4. Step 4: Simplify right side
    20,460,143.40x = 235,851,107,019,901
  5. Step 5: Solve for x
    x = 235,851,107,019,901/20,460,143.40
  6. Step 6: Final answer
    x = 11,527,343.79

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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.