Home / 459,678,561.22-689,498,552.49-213,950,674.81

Finding the Fourth Proportional to 459,678,561.22, 689,498,552.49 and 213,950,674.81

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Solution

The fourth proportional to 459,678,561.22, 689,498,552.49 and 213,950,674.81 is: 320,917,034.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,678,561.22 : 689,498,552.49 = 213,950,674.81 : x
  2. Step 2: Convert to fraction form
    459,678,561.22/689,498,552.49 = 213,950,674.81/x
  3. Step 3: Cross multiply
    459,678,561.22x = 689,498,552.49 × 213,950,674.81
  4. Step 4: Simplify right side
    459,678,561.22x = 147,518,680,585,753,696
  5. Step 5: Solve for x
    x = 147,518,680,585,753,696/459,678,561.22
  6. Step 6: Final answer
    x = 320,917,034.27

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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.