Home / 764,467,373,110.72-1,146,852,119,185.80-280,426,087,359.04

Finding the Fourth Proportional to 764,467,373,110.72, 1,146,852,119,185.80 and 280,426,087,359.04

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Solution

The fourth proportional to 764,467,373,110.72, 1,146,852,119,185.80 and 280,426,087,359.04 is: 420,694,543,514.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,467,373,110.72 : 1,146,852,119,185.80 = 280,426,087,359.04 : x
  2. Step 2: Convert to fraction form
    764,467,373,110.72/1,146,852,119,185.80 = 280,426,087,359.04/x
  3. Step 3: Cross multiply
    764,467,373,110.72x = 1,146,852,119,185.80 × 280,426,087,359.04
  4. Step 4: Simplify right side
    764,467,373,110.72x = 321,607,252,562,697,286,320,128
  5. Step 5: Solve for x
    x = 321,607,252,562,697,286,320,128/764,467,373,110.72
  6. Step 6: Final answer
    x = 420,694,543,514.70

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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.