Home / 13,935,771.78-19,231,365.06-7,824,331.50

Finding the Fourth Proportional to 13,935,771.78, 19,231,365.06 and 7,824,331.50

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Solution

The fourth proportional to 13,935,771.78, 19,231,365.06 and 7,824,331.50 is: 10,797,577.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,935,771.78 : 19,231,365.06 = 7,824,331.50 : x
  2. Step 2: Convert to fraction form
    13,935,771.78/19,231,365.06 = 7,824,331.50/x
  3. Step 3: Cross multiply
    13,935,771.78x = 19,231,365.06 × 7,824,331.50
  4. Step 4: Simplify right side
    13,935,771.78x = 150,472,575,426,957.38
  5. Step 5: Solve for x
    x = 150,472,575,426,957.38/13,935,771.78
  6. Step 6: Final answer
    x = 10,797,577.47

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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.