Home / 21,870,950.70-30,181,327.21-12,081,184.19

Finding the Fourth Proportional to 21,870,950.70, 30,181,327.21 and 12,081,184.19

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Solution

The fourth proportional to 21,870,950.70, 30,181,327.21 and 12,081,184.19 is: 16,671,711.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,870,950.70 : 30,181,327.21 = 12,081,184.19 : x
  2. Step 2: Convert to fraction form
    21,870,950.70/30,181,327.21 = 12,081,184.19/x
  3. Step 3: Cross multiply
    21,870,950.70x = 30,181,327.21 × 12,081,184.19
  4. Step 4: Simplify right side
    21,870,950.70x = 364,626,173,122,668.81
  5. Step 5: Solve for x
    x = 364,626,173,122,668.81/21,870,950.70
  6. Step 6: Final answer
    x = 16,671,711.17

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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.