Home / 19,697,930.56-26,986,039-18,961,319.50

Finding the Fourth Proportional to 19,697,930.56, 26,986,039 and 18,961,319.50

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Solution

The fourth proportional to 19,697,930.56, 26,986,039 and 18,961,319.50 is: 25,976,886.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,697,930.56 : 26,986,039 = 18,961,319.50 : x
  2. Step 2: Convert to fraction form
    19,697,930.56/26,986,039 = 18,961,319.50/x
  3. Step 3: Cross multiply
    19,697,930.56x = 26,986,039 × 18,961,319.50
  4. Step 4: Simplify right side
    19,697,930.56x = 511,690,907,518,460.50
  5. Step 5: Solve for x
    x = 511,690,907,518,460.50/19,697,930.56
  6. Step 6: Final answer
    x = 25,976,886.55

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.