Home / 631,231,162.80-871,125,907.04-352,772,678.13

Finding the Fourth Proportional to 631,231,162.80, 871,125,907.04 and 352,772,678.13

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Solution

The fourth proportional to 631,231,162.80, 871,125,907.04 and 352,772,678.13 is: 486,841,330.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,231,162.80 : 871,125,907.04 = 352,772,678.13 : x
  2. Step 2: Convert to fraction form
    631,231,162.80/871,125,907.04 = 352,772,678.13/x
  3. Step 3: Cross multiply
    631,231,162.80x = 871,125,907.04 × 352,772,678.13
  4. Step 4: Simplify right side
    631,231,162.80x = 307,309,419,214,926,208
  5. Step 5: Solve for x
    x = 307,309,419,214,926,208/631,231,162.80
  6. Step 6: Final answer
    x = 486,841,330.60

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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.