Home / 812,102,518,645.75-1,218,194,240,117.60-309,063,893,964.97

Finding the Fourth Proportional to 812,102,518,645.75, 1,218,194,240,117.60 and 309,063,893,964.97

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Solution

The fourth proportional to 812,102,518,645.75, 1,218,194,240,117.60 and 309,063,893,964.97 is: 463,611,239,729.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,102,518,645.75 : 1,218,194,240,117.60 = 309,063,893,964.97 : x
  2. Step 2: Convert to fraction form
    812,102,518,645.75/1,218,194,240,117.60 = 309,063,893,964.97/x
  3. Step 3: Cross multiply
    812,102,518,645.75x = 1,218,194,240,117.60 × 309,063,893,964.97
  4. Step 4: Simplify right side
    812,102,518,645.75x = 376,499,855,456,443,121,532,928
  5. Step 5: Solve for x
    x = 376,499,855,456,443,121,532,928/812,102,518,645.75
  6. Step 6: Final answer
    x = 463,611,239,729.05

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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.