Home / 13,718,695.56-18,930,435.48-7,919,345.58

Finding the Fourth Proportional to 13,718,695.56, 18,930,435.48 and 7,919,345.58

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Solution

The fourth proportional to 13,718,695.56, 18,930,435.48 and 7,919,345.58 is: 10,927,909.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,718,695.56 : 18,930,435.48 = 7,919,345.58 : x
  2. Step 2: Convert to fraction form
    13,718,695.56/18,930,435.48 = 7,919,345.58/x
  3. Step 3: Cross multiply
    13,718,695.56x = 18,930,435.48 × 7,919,345.58
  4. Step 4: Simplify right side
    13,718,695.56x = 149,916,660,546,013.19
  5. Step 5: Solve for x
    x = 149,916,660,546,013.19/13,718,695.56
  6. Step 6: Final answer
    x = 10,927,909.28

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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.