Home / 13,921,830.78-19,212,331.19-7,727,274.93

Finding the Fourth Proportional to 13,921,830.78, 19,212,331.19 and 7,727,274.93

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Solution

The fourth proportional to 13,921,830.78, 19,212,331.19 and 7,727,274.93 is: 10,663,753.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,921,830.78 : 19,212,331.19 = 7,727,274.93 : x
  2. Step 2: Convert to fraction form
    13,921,830.78/19,212,331.19 = 7,727,274.93/x
  3. Step 3: Cross multiply
    13,921,830.78x = 19,212,331.19 × 7,727,274.93
  4. Step 4: Simplify right side
    13,921,830.78x = 148,458,965,112,707.69
  5. Step 5: Solve for x
    x = 148,458,965,112,707.69/13,921,830.78
  6. Step 6: Final answer
    x = 10,663,753.03

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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.