Home / 54,438,127.80-81,657,191.70-20,352,420.60

Finding the Fourth Proportional to 54,438,127.80, 81,657,191.70 and 20,352,420.60

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Solution

The fourth proportional to 54,438,127.80, 81,657,191.70 and 20,352,420.60 is: 30,528,630.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,438,127.80 : 81,657,191.70 = 20,352,420.60 : x
  2. Step 2: Convert to fraction form
    54,438,127.80/81,657,191.70 = 20,352,420.60/x
  3. Step 3: Cross multiply
    54,438,127.80x = 81,657,191.70 × 20,352,420.60
  4. Step 4: Simplify right side
    54,438,127.80x = 1,661,921,510,493,229.25
  5. Step 5: Solve for x
    x = 1,661,921,510,493,229.25/54,438,127.80
  6. Step 6: Final answer
    x = 30,528,630.90

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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.