Home / 812,102,518,654.09-1,218,194,240,130.30-309,063,893,973.35

Finding the Fourth Proportional to 812,102,518,654.09, 1,218,194,240,130.30 and 309,063,893,973.35

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Solution

The fourth proportional to 812,102,518,654.09, 1,218,194,240,130.30 and 309,063,893,973.35 is: 463,611,239,741.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,102,518,654.09 : 1,218,194,240,130.30 = 309,063,893,973.35 : x
  2. Step 2: Convert to fraction form
    812,102,518,654.09/1,218,194,240,130.30 = 309,063,893,973.35/x
  3. Step 3: Cross multiply
    812,102,518,654.09x = 1,218,194,240,130.30 × 309,063,893,973.35
  4. Step 4: Simplify right side
    812,102,518,654.09x = 376,499,855,470,576,718,053,376
  5. Step 5: Solve for x
    x = 376,499,855,470,576,718,053,376/812,102,518,654.09
  6. Step 6: Final answer
    x = 463,611,239,741.70

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Double scale
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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.