Home / 131,868,331.20-197,424,583.20-128,089,195.20

Finding the Fourth Proportional to 131,868,331.20, 197,424,583.20 and 128,089,195.20

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Solution

The fourth proportional to 131,868,331.20, 197,424,583.20 and 128,089,195.20 is: 191,766,709.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,868,331.20 : 197,424,583.20 = 128,089,195.20 : x
  2. Step 2: Convert to fraction form
    131,868,331.20/197,424,583.20 = 128,089,195.20/x
  3. Step 3: Cross multiply
    131,868,331.20x = 197,424,583.20 × 128,089,195.20
  4. Step 4: Simplify right side
    131,868,331.20x = 25,287,955,974,783,440
  5. Step 5: Solve for x
    x = 25,287,955,974,783,440/131,868,331.20
  6. Step 6: Final answer
    x = 191,766,709.60

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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.