Home / 13,031,266.86-17,978,693.99-7,445,505.49

Finding the Fourth Proportional to 13,031,266.86, 17,978,693.99 and 7,445,505.49

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Solution

The fourth proportional to 13,031,266.86, 17,978,693.99 and 7,445,505.49 is: 10,272,252.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,031,266.86 : 17,978,693.99 = 7,445,505.49 : x
  2. Step 2: Convert to fraction form
    13,031,266.86/17,978,693.99 = 7,445,505.49/x
  3. Step 3: Cross multiply
    13,031,266.86x = 17,978,693.99 × 7,445,505.49
  4. Step 4: Simplify right side
    13,031,266.86x = 133,860,464,723,400.73
  5. Step 5: Solve for x
    x = 133,860,464,723,400.73/13,031,266.86
  6. Step 6: Final answer
    x = 10,272,252.59

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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.