Home / 403,168,969,208.79-556,373,400,734.34-217,770,677,331.54

Finding the Fourth Proportional to 403,168,969,208.79, 556,373,400,734.34 and 217,770,677,331.54

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Solution

The fourth proportional to 403,168,969,208.79, 556,373,400,734.34 and 217,770,677,331.54 is: 300,523,655,292.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,168,969,208.79 : 556,373,400,734.34 = 217,770,677,331.54 : x
  2. Step 2: Convert to fraction form
    403,168,969,208.79/556,373,400,734.34 = 217,770,677,331.54/x
  3. Step 3: Cross multiply
    403,168,969,208.79x = 556,373,400,734.34 × 217,770,677,331.54
  4. Step 4: Simplify right side
    403,168,969,208.79x = 121,161,812,327,169,550,974,976
  5. Step 5: Solve for x
    x = 121,161,812,327,169,550,974,976/403,168,969,208.79
  6. Step 6: Final answer
    x = 300,523,655,292.59

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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.