Home / 147,905,617.80-221,433,273.90-90,509,989.80

Finding the Fourth Proportional to 147,905,617.80, 221,433,273.90 and 90,509,989.80

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Solution

The fourth proportional to 147,905,617.80, 221,433,273.90 and 90,509,989.80 is: 135,504,814.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,905,617.80 : 221,433,273.90 = 90,509,989.80 : x
  2. Step 2: Convert to fraction form
    147,905,617.80/221,433,273.90 = 90,509,989.80/x
  3. Step 3: Cross multiply
    147,905,617.80x = 221,433,273.90 × 90,509,989.80
  4. Step 4: Simplify right side
    147,905,617.80x = 20,041,923,362,069,608
  5. Step 5: Solve for x
    x = 20,041,923,362,069,608/147,905,617.80
  6. Step 6: Final answer
    x = 135,504,814.90

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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.