Home / 38,648,900.96-53,336,145.96-21,245,979.68

Finding the Fourth Proportional to 38,648,900.96, 53,336,145.96 and 21,245,979.68

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Solution

The fourth proportional to 38,648,900.96, 53,336,145.96 and 21,245,979.68 is: 29,319,816.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,648,900.96 : 53,336,145.96 = 21,245,979.68 : x
  2. Step 2: Convert to fraction form
    38,648,900.96/53,336,145.96 = 21,245,979.68/x
  3. Step 3: Cross multiply
    38,648,900.96x = 53,336,145.96 × 21,245,979.68
  4. Step 4: Simplify right side
    38,648,900.96x = 1,133,178,673,275,674
  5. Step 5: Solve for x
    x = 1,133,178,673,275,674/38,648,900.96
  6. Step 6: Final answer
    x = 29,319,816.22

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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.