Home / 20,460,135.40-30,702,012.90-7,681,931.80

Finding the Fourth Proportional to 20,460,135.40, 30,702,012.90 and 7,681,931.80

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Solution

The fourth proportional to 20,460,135.40, 30,702,012.90 and 7,681,931.80 is: 11,527,331.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,460,135.40 : 30,702,012.90 = 7,681,931.80 : x
  2. Step 2: Convert to fraction form
    20,460,135.40/30,702,012.90 = 7,681,931.80/x
  3. Step 3: Cross multiply
    20,460,135.40x = 30,702,012.90 × 7,681,931.80
  4. Step 4: Simplify right side
    20,460,135.40x = 235,850,769,220,520.19
  5. Step 5: Solve for x
    x = 235,850,769,220,520.19/20,460,135.40
  6. Step 6: Final answer
    x = 11,527,331.79

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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.