Home / 13,294,150.30-18,345,909.64-7,182,578.80

Finding the Fourth Proportional to 13,294,150.30, 18,345,909.64 and 7,182,578.80

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Solution

The fourth proportional to 13,294,150.30, 18,345,909.64 and 7,182,578.80 is: 9,911,949.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,294,150.30 : 18,345,909.64 = 7,182,578.80 : x
  2. Step 2: Convert to fraction form
    13,294,150.30/18,345,909.64 = 7,182,578.80/x
  3. Step 3: Cross multiply
    13,294,150.30x = 18,345,909.64 × 7,182,578.80
  4. Step 4: Simplify right side
    13,294,150.30x = 131,770,941,646,979.64
  5. Step 5: Solve for x
    x = 131,770,941,646,979.64/13,294,150.30
  6. Step 6: Final answer
    x = 9,911,949.14

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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.