Home / 209,952,287.70-314,928,431.55-198,048,009.30

Finding the Fourth Proportional to 209,952,287.70, 314,928,431.55 and 198,048,009.30

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Solution

The fourth proportional to 209,952,287.70, 314,928,431.55 and 198,048,009.30 is: 297,072,013.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,952,287.70 : 314,928,431.55 = 198,048,009.30 : x
  2. Step 2: Convert to fraction form
    209,952,287.70/314,928,431.55 = 198,048,009.30/x
  3. Step 3: Cross multiply
    209,952,287.70x = 314,928,431.55 × 198,048,009.30
  4. Step 4: Simplify right side
    209,952,287.70x = 62,370,948,940,448,816
  5. Step 5: Solve for x
    x = 62,370,948,940,448,816/209,952,287.70
  6. Step 6: Final answer
    x = 297,072,013.95

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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.