Home / 513,154,135,261-708,153,407,919.56-278,509,426,791.28

Finding the Fourth Proportional to 513,154,135,261, 708,153,407,919.56 and 278,509,426,791.28

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Solution

The fourth proportional to 513,154,135,261, 708,153,407,919.56 and 278,509,426,791.28 is: 384,343,389,573.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,154,135,261 : 708,153,407,919.56 = 278,509,426,791.28 : x
  2. Step 2: Convert to fraction form
    513,154,135,261/708,153,407,919.56 = 278,509,426,791.28/x
  3. Step 3: Cross multiply
    513,154,135,261x = 708,153,407,919.56 × 278,509,426,791.28
  4. Step 4: Simplify right side
    513,154,135,261x = 197,227,399,719,968,183,418,880
  5. Step 5: Solve for x
    x = 197,227,399,719,968,183,418,880/513,154,135,261
  6. Step 6: Final answer
    x = 384,343,389,573.69

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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.