Home / 17,778,969.60-26,668,454.40-13,299,993.60

Finding the Fourth Proportional to 17,778,969.60, 26,668,454.40 and 13,299,993.60

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Solution

The fourth proportional to 17,778,969.60, 26,668,454.40 and 13,299,993.60 is: 19,949,990.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,778,969.60 : 26,668,454.40 = 13,299,993.60 : x
  2. Step 2: Convert to fraction form
    17,778,969.60/26,668,454.40 = 13,299,993.60/x
  3. Step 3: Cross multiply
    17,778,969.60x = 26,668,454.40 × 13,299,993.60
  4. Step 4: Simplify right side
    17,778,969.60x = 354,690,272,841,891.81
  5. Step 5: Solve for x
    x = 354,690,272,841,891.81/17,778,969.60
  6. Step 6: Final answer
    x = 19,949,990.40

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.