Home / 13,889,691.52-19,168,980.80-7,778,008.96

Finding the Fourth Proportional to 13,889,691.52, 19,168,980.80 and 7,778,008.96

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Solution

The fourth proportional to 13,889,691.52, 19,168,980.80 and 7,778,008.96 is: 10,734,327.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,889,691.52 : 19,168,980.80 = 7,778,008.96 : x
  2. Step 2: Convert to fraction form
    13,889,691.52/19,168,980.80 = 7,778,008.96/x
  3. Step 3: Cross multiply
    13,889,691.52x = 19,168,980.80 × 7,778,008.96
  4. Step 4: Simplify right side
    13,889,691.52x = 149,096,504,416,467.97
  5. Step 5: Solve for x
    x = 149,096,504,416,467.97/13,889,691.52
  6. Step 6: Final answer
    x = 10,734,327.99

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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.