Home / 445,828,021.80-615,168,850.62-257,673,836.61

Finding the Fourth Proportional to 445,828,021.80, 615,168,850.62 and 257,673,836.61

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Solution

The fourth proportional to 445,828,021.80, 615,168,850.62 and 257,673,836.61 is: 355,547,229.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,828,021.80 : 615,168,850.62 = 257,673,836.61 : x
  2. Step 2: Convert to fraction form
    445,828,021.80/615,168,850.62 = 257,673,836.61/x
  3. Step 3: Cross multiply
    445,828,021.80x = 615,168,850.62 × 257,673,836.61
  4. Step 4: Simplify right side
    445,828,021.80x = 158,512,917,902,219,392
  5. Step 5: Solve for x
    x = 158,512,917,902,219,392/445,828,021.80
  6. Step 6: Final answer
    x = 355,547,229.32

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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.