Home / 668,157,819.09-922,078,758.54-385,895,016.33

Finding the Fourth Proportional to 668,157,819.09, 922,078,758.54 and 385,895,016.33

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Solution

The fourth proportional to 668,157,819.09, 922,078,758.54 and 385,895,016.33 is: 532,547,232.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,157,819.09 : 922,078,758.54 = 385,895,016.33 : x
  2. Step 2: Convert to fraction form
    668,157,819.09/922,078,758.54 = 385,895,016.33/x
  3. Step 3: Cross multiply
    668,157,819.09x = 922,078,758.54 × 385,895,016.33
  4. Step 4: Simplify right side
    668,157,819.09x = 355,825,597,584,339,392
  5. Step 5: Solve for x
    x = 355,825,597,584,339,392/668,157,819.09
  6. Step 6: Final answer
    x = 532,547,232.73

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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.