Home / 20,657,611.80-30,915,558.90-18,957,000.60

Finding the Fourth Proportional to 20,657,611.80, 30,915,558.90 and 18,957,000.60

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Solution

The fourth proportional to 20,657,611.80, 30,915,558.90 and 18,957,000.60 is: 28,370,475.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,657,611.80 : 30,915,558.90 = 18,957,000.60 : x
  2. Step 2: Convert to fraction form
    20,657,611.80/30,915,558.90 = 18,957,000.60/x
  3. Step 3: Cross multiply
    20,657,611.80x = 30,915,558.90 × 18,957,000.60
  4. Step 4: Simplify right side
    20,657,611.80x = 586,066,268,616,635.38
  5. Step 5: Solve for x
    x = 586,066,268,616,635.38/20,657,611.80
  6. Step 6: Final answer
    x = 28,370,475.46

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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.