Home / 147,905,615.30-221,433,270.15-90,509,987.30

Finding the Fourth Proportional to 147,905,615.30, 221,433,270.15 and 90,509,987.30

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Solution

The fourth proportional to 147,905,615.30, 221,433,270.15 and 90,509,987.30 is: 135,504,811.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,905,615.30 : 221,433,270.15 = 90,509,987.30 : x
  2. Step 2: Convert to fraction form
    147,905,615.30/221,433,270.15 = 90,509,987.30/x
  3. Step 3: Cross multiply
    147,905,615.30x = 221,433,270.15 × 90,509,987.30
  4. Step 4: Simplify right side
    147,905,615.30x = 20,041,922,469,073,968
  5. Step 5: Solve for x
    x = 20,041,922,469,073,968/147,905,615.30
  6. Step 6: Final answer
    x = 135,504,811.15

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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.