Home / 690,116,928,758.64-952,455,969,406.05-397,135,830,424.32

Finding the Fourth Proportional to 690,116,928,758.64, 952,455,969,406.05 and 397,135,830,424.32

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Solution

The fourth proportional to 690,116,928,758.64, 952,455,969,406.05 and 397,135,830,424.32 is: 548,101,889,100.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,116,928,758.64 : 952,455,969,406.05 = 397,135,830,424.32 : x
  2. Step 2: Convert to fraction form
    690,116,928,758.64/952,455,969,406.05 = 397,135,830,424.32/x
  3. Step 3: Cross multiply
    690,116,928,758.64x = 952,455,969,406.05 × 397,135,830,424.32
  4. Step 4: Simplify right side
    690,116,928,758.64x = 378,254,392,352,672,424,394,752
  5. Step 5: Solve for x
    x = 378,254,392,352,672,424,394,752/690,116,928,758.64
  6. Step 6: Final answer
    x = 548,101,889,100.25

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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.