Home / 877,967,442.85-1,316,425,213.32-279,446,769.73

Finding the Fourth Proportional to 877,967,442.85, 1,316,425,213.32 and 279,446,769.73

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Solution

The fourth proportional to 877,967,442.85, 1,316,425,213.32 and 279,446,769.73 is: 419,002,750.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,967,442.85 : 1,316,425,213.32 = 279,446,769.73 : x
  2. Step 2: Convert to fraction form
    877,967,442.85/1,316,425,213.32 = 279,446,769.73/x
  3. Step 3: Cross multiply
    877,967,442.85x = 1,316,425,213.32 × 279,446,769.73
  4. Step 4: Simplify right side
    877,967,442.85x = 367,870,773,453,400,192
  5. Step 5: Solve for x
    x = 367,870,773,453,400,192/877,967,442.85
  6. Step 6: Final answer
    x = 419,002,750.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.