Home / 13,887,200.90-19,163,491.80-7,691,880.32

Finding the Fourth Proportional to 13,887,200.90, 19,163,491.80 and 7,691,880.32

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Solution

The fourth proportional to 13,887,200.90, 19,163,491.80 and 7,691,880.32 is: 10,614,326.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,887,200.90 : 19,163,491.80 = 7,691,880.32 : x
  2. Step 2: Convert to fraction form
    13,887,200.90/19,163,491.80 = 7,691,880.32/x
  3. Step 3: Cross multiply
    13,887,200.90x = 19,163,491.80 × 7,691,880.32
  4. Step 4: Simplify right side
    13,887,200.90x = 147,403,285,343,083.94
  5. Step 5: Solve for x
    x = 147,403,285,343,083.94/13,887,200.90
  6. Step 6: Final answer
    x = 10,614,326.56

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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.