Home / 812,102,518,646.85-1,218,194,240,119.40-309,063,893,966.10

Finding the Fourth Proportional to 812,102,518,646.85, 1,218,194,240,119.40 and 309,063,893,966.10

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Solution

The fourth proportional to 812,102,518,646.85, 1,218,194,240,119.40 and 309,063,893,966.10 is: 463,611,239,730.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,102,518,646.85 : 1,218,194,240,119.40 = 309,063,893,966.10 : x
  2. Step 2: Convert to fraction form
    812,102,518,646.85/1,218,194,240,119.40 = 309,063,893,966.10/x
  3. Step 3: Cross multiply
    812,102,518,646.85x = 1,218,194,240,119.40 × 309,063,893,966.10
  4. Step 4: Simplify right side
    812,102,518,646.85x = 376,499,855,458,375,923,924,992
  5. Step 5: Solve for x
    x = 376,499,855,458,375,923,924,992/812,102,518,646.85
  6. Step 6: Final answer
    x = 463,611,239,730.81

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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.