Home / 91,089,012.30-136,633,518.45-82,302,521.10

Finding the Fourth Proportional to 91,089,012.30, 136,633,518.45 and 82,302,521.10

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Solution

The fourth proportional to 91,089,012.30, 136,633,518.45 and 82,302,521.10 is: 123,453,781.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,089,012.30 : 136,633,518.45 = 82,302,521.10 : x
  2. Step 2: Convert to fraction form
    91,089,012.30/136,633,518.45 = 82,302,521.10/x
  3. Step 3: Cross multiply
    91,089,012.30x = 136,633,518.45 × 82,302,521.10
  4. Step 4: Simplify right side
    91,089,012.30x = 11,245,283,035,198,362
  5. Step 5: Solve for x
    x = 11,245,283,035,198,362/91,089,012.30
  6. Step 6: Final answer
    x = 123,453,781.65

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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.