Home / 641,579,717.73-885,380,665.74-348,224,346.21

Finding the Fourth Proportional to 641,579,717.73, 885,380,665.74 and 348,224,346.21

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Solution

The fourth proportional to 641,579,717.73, 885,380,665.74 and 348,224,346.21 is: 480,549,953.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,579,717.73 : 885,380,665.74 = 348,224,346.21 : x
  2. Step 2: Convert to fraction form
    641,579,717.73/885,380,665.74 = 348,224,346.21/x
  3. Step 3: Cross multiply
    641,579,717.73x = 885,380,665.74 × 348,224,346.21
  4. Step 4: Simplify right side
    641,579,717.73x = 308,311,103,474,286,016
  5. Step 5: Solve for x
    x = 308,311,103,474,286,016/641,579,717.73
  6. Step 6: Final answer
    x = 480,549,953.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.