Home / 20,809,611.20-31,214,416.80-14,762,993.60

Finding the Fourth Proportional to 20,809,611.20, 31,214,416.80 and 14,762,993.60

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Solution

The fourth proportional to 20,809,611.20, 31,214,416.80 and 14,762,993.60 is: 22,144,490.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,809,611.20 : 31,214,416.80 = 14,762,993.60 : x
  2. Step 2: Convert to fraction form
    20,809,611.20/31,214,416.80 = 14,762,993.60/x
  3. Step 3: Cross multiply
    20,809,611.20x = 31,214,416.80 × 14,762,993.60
  4. Step 4: Simplify right side
    20,809,611.20x = 460,818,235,446,132.50
  5. Step 5: Solve for x
    x = 460,818,235,446,132.50/20,809,611.20
  6. Step 6: Final answer
    x = 22,144,490.40

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1.5x scale

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.