Home / 340,778,113.69-470,193,700.84-206,813,060.65

Finding the Fourth Proportional to 340,778,113.69, 470,193,700.84 and 206,813,060.65

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Solution

The fourth proportional to 340,778,113.69, 470,193,700.84 and 206,813,060.65 is: 285,353,414.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,778,113.69 : 470,193,700.84 = 206,813,060.65 : x
  2. Step 2: Convert to fraction form
    340,778,113.69/470,193,700.84 = 206,813,060.65/x
  3. Step 3: Cross multiply
    340,778,113.69x = 470,193,700.84 × 206,813,060.65
  4. Step 4: Simplify right side
    340,778,113.69x = 97,242,198,366,719,904
  5. Step 5: Solve for x
    x = 97,242,198,366,719,904/340,778,113.69
  6. Step 6: Final answer
    x = 285,353,414.61

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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.