Home / 19,109,564.50-28,676,678.61-6,978,012.25

Finding the Fourth Proportional to 19,109,564.50, 28,676,678.61 and 6,978,012.25

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Solution

The fourth proportional to 19,109,564.50, 28,676,678.61 and 6,978,012.25 is: 10,471,521.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,109,564.50 : 28,676,678.61 = 6,978,012.25 : x
  2. Step 2: Convert to fraction form
    19,109,564.50/28,676,678.61 = 6,978,012.25/x
  3. Step 3: Cross multiply
    19,109,564.50x = 28,676,678.61 × 6,978,012.25
  4. Step 4: Simplify right side
    19,109,564.50x = 200,106,214,629,892.97
  5. Step 5: Solve for x
    x = 200,106,214,629,892.97/19,109,564.50
  6. Step 6: Final answer
    x = 10,471,521.45

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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.