Home / 12,890,526.59-17,788,571.71-7,089,310.44

Finding the Fourth Proportional to 12,890,526.59, 17,788,571.71 and 7,089,310.44

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Solution

The fourth proportional to 12,890,526.59, 17,788,571.71 and 7,089,310.44 is: 9,783,053.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,890,526.59 : 17,788,571.71 = 7,089,310.44 : x
  2. Step 2: Convert to fraction form
    12,890,526.59/17,788,571.71 = 7,089,310.44/x
  3. Step 3: Cross multiply
    12,890,526.59x = 17,788,571.71 × 7,089,310.44
  4. Step 4: Simplify right side
    12,890,526.59x = 126,108,707,136,391.67
  5. Step 5: Solve for x
    x = 126,108,707,136,391.67/12,890,526.59
  6. Step 6: Final answer
    x = 9,783,053.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.