Home / 631,230,719.23-871,125,294.90-352,772,234.56

Finding the Fourth Proportional to 631,230,719.23, 871,125,294.90 and 352,772,234.56

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Solution

The fourth proportional to 631,230,719.23, 871,125,294.90 and 352,772,234.56 is: 486,840,718.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,230,719.23 : 871,125,294.90 = 352,772,234.56 : x
  2. Step 2: Convert to fraction form
    631,230,719.23/871,125,294.90 = 352,772,234.56/x
  3. Step 3: Cross multiply
    631,230,719.23x = 871,125,294.90 × 352,772,234.56
  4. Step 4: Simplify right side
    631,230,719.23x = 307,308,816,863,611,968
  5. Step 5: Solve for x
    x = 307,308,816,863,611,968/631,230,719.23
  6. Step 6: Final answer
    x = 486,840,718.46

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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.