Home / 13,320,302.31-18,382,017-7,208,730.81

Finding the Fourth Proportional to 13,320,302.31, 18,382,017 and 7,208,730.81

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Solution

The fourth proportional to 13,320,302.31, 18,382,017 and 7,208,730.81 is: 9,948,048.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,320,302.31 : 18,382,017 = 7,208,730.81 : x
  2. Step 2: Convert to fraction form
    13,320,302.31/18,382,017 = 7,208,730.81/x
  3. Step 3: Cross multiply
    13,320,302.31x = 18,382,017 × 7,208,730.81
  4. Step 4: Simplify right side
    13,320,302.31x = 132,511,012,297,843.77
  5. Step 5: Solve for x
    x = 132,511,012,297,843.77/13,320,302.31
  6. Step 6: Final answer
    x = 9,948,048.42

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1.5x scale

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.