Home / 631,231,161.80-871,125,905.66-352,772,677.13

Finding the Fourth Proportional to 631,231,161.80, 871,125,905.66 and 352,772,677.13

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Solution

The fourth proportional to 631,231,161.80, 871,125,905.66 and 352,772,677.13 is: 486,841,329.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,231,161.80 : 871,125,905.66 = 352,772,677.13 : x
  2. Step 2: Convert to fraction form
    631,231,161.80/871,125,905.66 = 352,772,677.13/x
  3. Step 3: Cross multiply
    631,231,161.80x = 871,125,905.66 × 352,772,677.13
  4. Step 4: Simplify right side
    631,231,161.80x = 307,309,417,850,854,528
  5. Step 5: Solve for x
    x = 307,309,417,850,854,528/631,231,161.80
  6. Step 6: Final answer
    x = 486,841,329.22

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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.