Home / 13,294,151.30-18,345,911.02-7,182,579.80

Finding the Fourth Proportional to 13,294,151.30, 18,345,911.02 and 7,182,579.80

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Solution

The fourth proportional to 13,294,151.30, 18,345,911.02 and 7,182,579.80 is: 9,911,950.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,294,151.30 : 18,345,911.02 = 7,182,579.80 : x
  2. Step 2: Convert to fraction form
    13,294,151.30/18,345,911.02 = 7,182,579.80/x
  3. Step 3: Cross multiply
    13,294,151.30x = 18,345,911.02 × 7,182,579.80
  4. Step 4: Simplify right side
    13,294,151.30x = 131,770,969,904,849.39
  5. Step 5: Solve for x
    x = 131,770,969,904,849.39/13,294,151.30
  6. Step 6: Final answer
    x = 9,911,950.52

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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.