Home / 91,089,376.80-136,634,065.20-82,302,885.60

Finding the Fourth Proportional to 91,089,376.80, 136,634,065.20 and 82,302,885.60

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Solution

The fourth proportional to 91,089,376.80, 136,634,065.20 and 82,302,885.60 is: 123,454,328.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,089,376.80 : 136,634,065.20 = 82,302,885.60 : x
  2. Step 2: Convert to fraction form
    91,089,376.80/136,634,065.20 = 82,302,885.60/x
  3. Step 3: Cross multiply
    91,089,376.80x = 136,634,065.20 × 82,302,885.60
  4. Step 4: Simplify right side
    91,089,376.80x = 11,245,377,837,218,540
  5. Step 5: Solve for x
    x = 11,245,377,837,218,540/91,089,376.80
  6. Step 6: Final answer
    x = 123,454,328.40

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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.