Home / 20,460,136.40-30,702,014.40-7,681,932.80

Finding the Fourth Proportional to 20,460,136.40, 30,702,014.40 and 7,681,932.80

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Solution

The fourth proportional to 20,460,136.40, 30,702,014.40 and 7,681,932.80 is: 11,527,333.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,460,136.40 : 30,702,014.40 = 7,681,932.80 : x
  2. Step 2: Convert to fraction form
    20,460,136.40/30,702,014.40 = 7,681,932.80/x
  3. Step 3: Cross multiply
    20,460,136.40x = 30,702,014.40 × 7,681,932.80
  4. Step 4: Simplify right side
    20,460,136.40x = 235,850,811,445,432.31
  5. Step 5: Solve for x
    x = 235,850,811,445,432.31/20,460,136.40
  6. Step 6: Final answer
    x = 11,527,333.29

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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.