Home / 421,192,992.32-631,447,198.68-175,732,588.16

Finding the Fourth Proportional to 421,192,992.32, 631,447,198.68 and 175,732,588.16

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Solution

The fourth proportional to 421,192,992.32, 631,447,198.68 and 175,732,588.16 is: 263,456,070.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,192,992.32 : 631,447,198.68 = 175,732,588.16 : x
  2. Step 2: Convert to fraction form
    421,192,992.32/631,447,198.68 = 175,732,588.16/x
  3. Step 3: Cross multiply
    421,192,992.32x = 631,447,198.68 × 175,732,588.16
  4. Step 4: Simplify right side
    421,192,992.32x = 110,965,850,510,418,128
  5. Step 5: Solve for x
    x = 110,965,850,510,418,128/421,192,992.32
  6. Step 6: Final answer
    x = 263,456,070.10

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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.