Home / 1,279,513,132,379.20-1,919,242,809,100.10-311,426,974,004.55

Finding the Fourth Proportional to 1,279,513,132,379.20, 1,919,242,809,100.10 and 311,426,974,004.55

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Solution

The fourth proportional to 1,279,513,132,379.20, 1,919,242,809,100.10 and 311,426,974,004.55 is: 467,133,916,247.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279,513,132,379.20 : 1,919,242,809,100.10 = 311,426,974,004.55 : x
  2. Step 2: Convert to fraction form
    1,279,513,132,379.20/1,919,242,809,100.10 = 311,426,974,004.55/x
  3. Step 3: Cross multiply
    1,279,513,132,379.20x = 1,919,242,809,100.10 × 311,426,974,004.55
  4. Step 4: Simplify right side
    1,279,513,132,379.20x = 597,703,980,418,036,370,767,872
  5. Step 5: Solve for x
    x = 597,703,980,418,036,370,767,872/1,279,513,132,379.20
  6. Step 6: Final answer
    x = 467,133,916,247.22

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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.