Home / 79,131,623.80-118,697,435.70-71,195,438.20

Finding the Fourth Proportional to 79,131,623.80, 118,697,435.70 and 71,195,438.20

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Solution

The fourth proportional to 79,131,623.80, 118,697,435.70 and 71,195,438.20 is: 106,793,157.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,131,623.80 : 118,697,435.70 = 71,195,438.20 : x
  2. Step 2: Convert to fraction form
    79,131,623.80/118,697,435.70 = 71,195,438.20/x
  3. Step 3: Cross multiply
    79,131,623.80x = 118,697,435.70 × 71,195,438.20
  4. Step 4: Simplify right side
    79,131,623.80x = 8,450,715,947,877,824
  5. Step 5: Solve for x
    x = 8,450,715,947,877,824/79,131,623.80
  6. Step 6: Final answer
    x = 106,793,157.30

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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.