Home / 521,183,763.70-719,072,316.20-301,086,883.06

Finding the Fourth Proportional to 521,183,763.70, 719,072,316.20 and 301,086,883.06

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Solution

The fourth proportional to 521,183,763.70, 719,072,316.20 and 301,086,883.06 is: 415,406,728.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,183,763.70 : 719,072,316.20 = 301,086,883.06 : x
  2. Step 2: Convert to fraction form
    521,183,763.70/719,072,316.20 = 301,086,883.06/x
  3. Step 3: Cross multiply
    521,183,763.70x = 719,072,316.20 × 301,086,883.06
  4. Step 4: Simplify right side
    521,183,763.70x = 216,503,242,379,392,768
  5. Step 5: Solve for x
    x = 216,503,242,379,392,768/521,183,763.70
  6. Step 6: Final answer
    x = 415,406,728.79

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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.