Home / 9,789,979.51-13,493,070.45-7,170,919.36

Finding the Fourth Proportional to 9,789,979.51, 13,493,070.45 and 7,170,919.36

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Solution

The fourth proportional to 9,789,979.51, 13,493,070.45 and 7,170,919.36 is: 9,883,342.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,789,979.51 : 13,493,070.45 = 7,170,919.36 : x
  2. Step 2: Convert to fraction form
    9,789,979.51/13,493,070.45 = 7,170,919.36/x
  3. Step 3: Cross multiply
    9,789,979.51x = 13,493,070.45 × 7,170,919.36
  4. Step 4: Simplify right side
    9,789,979.51x = 96,757,720,082,016.23
  5. Step 5: Solve for x
    x = 96,757,720,082,016.23/9,789,979.51
  6. Step 6: Final answer
    x = 9,883,342.45

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Double scale
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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.