Home / 702,374,542.37-969,038,247.92-400,743,164.97

Finding the Fourth Proportional to 702,374,542.37, 969,038,247.92 and 400,743,164.97

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Solution

The fourth proportional to 702,374,542.37, 969,038,247.92 and 400,743,164.97 is: 552,889,421.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,374,542.37 : 969,038,247.92 = 400,743,164.97 : x
  2. Step 2: Convert to fraction form
    702,374,542.37/969,038,247.92 = 400,743,164.97/x
  3. Step 3: Cross multiply
    702,374,542.37x = 969,038,247.92 × 400,743,164.97
  4. Step 4: Simplify right side
    702,374,542.37x = 388,335,454,448,444,352
  5. Step 5: Solve for x
    x = 388,335,454,448,444,352/702,374,542.37
  6. Step 6: Final answer
    x = 552,889,421.56

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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.