Home / 631,230,721.24-871,125,297.66-352,772,236.56

Finding the Fourth Proportional to 631,230,721.24, 871,125,297.66 and 352,772,236.56

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Solution

The fourth proportional to 631,230,721.24, 871,125,297.66 and 352,772,236.56 is: 486,840,721.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,230,721.24 : 871,125,297.66 = 352,772,236.56 : x
  2. Step 2: Convert to fraction form
    631,230,721.24/871,125,297.66 = 352,772,236.56/x
  3. Step 3: Cross multiply
    631,230,721.24x = 871,125,297.66 × 352,772,236.56
  4. Step 4: Simplify right side
    631,230,721.24x = 307,308,819,579,513,920
  5. Step 5: Solve for x
    x = 307,308,819,579,513,920/631,230,721.24
  6. Step 6: Final answer
    x = 486,840,721.21

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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.