Home / 13,320,293.42-18,382,004.75-7,208,721.92

Finding the Fourth Proportional to 13,320,293.42, 18,382,004.75 and 7,208,721.92

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Solution

The fourth proportional to 13,320,293.42, 18,382,004.75 and 7,208,721.92 is: 9,948,036.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,320,293.42 : 18,382,004.75 = 7,208,721.92 : x
  2. Step 2: Convert to fraction form
    13,320,293.42/18,382,004.75 = 7,208,721.92/x
  3. Step 3: Cross multiply
    13,320,293.42x = 18,382,004.75 × 7,208,721.92
  4. Step 4: Simplify right side
    13,320,293.42x = 132,510,760,574,869.12
  5. Step 5: Solve for x
    x = 132,510,760,574,869.12/13,320,293.42
  6. Step 6: Final answer
    x = 9,948,036.16

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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.