Home / 49,389,237.60-74,091,729.60-20,620,564.80

Finding the Fourth Proportional to 49,389,237.60, 74,091,729.60 and 20,620,564.80

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Solution

The fourth proportional to 49,389,237.60, 74,091,729.60 and 20,620,564.80 is: 30,934,134.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,389,237.60 : 74,091,729.60 = 20,620,564.80 : x
  2. Step 2: Convert to fraction form
    49,389,237.60/74,091,729.60 = 20,620,564.80/x
  3. Step 3: Cross multiply
    49,389,237.60x = 74,091,729.60 × 20,620,564.80
  4. Step 4: Simplify right side
    49,389,237.60x = 1,527,813,311,360,878
  5. Step 5: Solve for x
    x = 1,527,813,311,360,878/49,389,237.60
  6. Step 6: Final answer
    x = 30,934,134.35

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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.