Home / 20,111,553.69-30,159,673.30-11,916,508.46

Finding the Fourth Proportional to 20,111,553.69, 30,159,673.30 and 11,916,508.46

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Solution

The fourth proportional to 20,111,553.69, 30,159,673.30 and 11,916,508.46 is: 17,870,225.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,111,553.69 : 30,159,673.30 = 11,916,508.46 : x
  2. Step 2: Convert to fraction form
    20,111,553.69/30,159,673.30 = 11,916,508.46/x
  3. Step 3: Cross multiply
    20,111,553.69x = 30,159,673.30 × 11,916,508.46
  4. Step 4: Simplify right side
    20,111,553.69x = 359,398,002,081,810.19
  5. Step 5: Solve for x
    x = 359,398,002,081,810.19/20,111,553.69
  6. Step 6: Final answer
    x = 17,870,225.63

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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.