Home / 685,586,133.16-1,028,241,705.78-335,681,442.16

Finding the Fourth Proportional to 685,586,133.16, 1,028,241,705.78 and 335,681,442.16

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Solution

The fourth proportional to 685,586,133.16, 1,028,241,705.78 and 335,681,442.16 is: 503,454,842.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,586,133.16 : 1,028,241,705.78 = 335,681,442.16 : x
  2. Step 2: Convert to fraction form
    685,586,133.16/1,028,241,705.78 = 335,681,442.16/x
  3. Step 3: Cross multiply
    685,586,133.16x = 1,028,241,705.78 × 335,681,442.16
  4. Step 4: Simplify right side
    685,586,133.16x = 345,161,658,682,718,208
  5. Step 5: Solve for x
    x = 345,161,658,682,718,208/685,586,133.16
  6. Step 6: Final answer
    x = 503,454,842.49

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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.