Home / 11,431,218.45-15,788,173.62-7,528,420.67

Finding the Fourth Proportional to 11,431,218.45, 15,788,173.62 and 7,528,420.67

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Solution

The fourth proportional to 11,431,218.45, 15,788,173.62 and 7,528,420.67 is: 10,397,842.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,431,218.45 : 15,788,173.62 = 7,528,420.67 : x
  2. Step 2: Convert to fraction form
    11,431,218.45/15,788,173.62 = 7,528,420.67/x
  3. Step 3: Cross multiply
    11,431,218.45x = 15,788,173.62 × 7,528,420.67
  4. Step 4: Simplify right side
    11,431,218.45x = 118,860,012,571,647.44
  5. Step 5: Solve for x
    x = 118,860,012,571,647.44/11,431,218.45
  6. Step 6: Final answer
    x = 10,397,842.81

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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.