Home / 13,396,979.80-20,095,469.70-13,285,005.40

Finding the Fourth Proportional to 13,396,979.80, 20,095,469.70 and 13,285,005.40

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Solution

The fourth proportional to 13,396,979.80, 20,095,469.70 and 13,285,005.40 is: 19,927,508.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,396,979.80 : 20,095,469.70 = 13,285,005.40 : x
  2. Step 2: Convert to fraction form
    13,396,979.80/20,095,469.70 = 13,285,005.40/x
  3. Step 3: Cross multiply
    13,396,979.80x = 20,095,469.70 × 13,285,005.40
  4. Step 4: Simplify right side
    13,396,979.80x = 266,968,423,480,036.38
  5. Step 5: Solve for x
    x = 266,968,423,480,036.38/13,396,979.80
  6. Step 6: Final answer
    x = 19,927,508.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.