Home / 13,879,809.78-19,154,736.02-7,684,856.37

Finding the Fourth Proportional to 13,879,809.78, 19,154,736.02 and 7,684,856.37

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Solution

The fourth proportional to 13,879,809.78, 19,154,736.02 and 7,684,856.37 is: 10,605,433.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,879,809.78 : 19,154,736.02 = 7,684,856.37 : x
  2. Step 2: Convert to fraction form
    13,879,809.78/19,154,736.02 = 7,684,856.37/x
  3. Step 3: Cross multiply
    13,879,809.78x = 19,154,736.02 × 7,684,856.37
  4. Step 4: Simplify right side
    13,879,809.78x = 147,201,395,138,177.59
  5. Step 5: Solve for x
    x = 147,201,395,138,177.59/13,879,809.78
  6. Step 6: Final answer
    x = 10,605,433.18

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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.