Home / 12,321,710,494.25-18,378,969,373.26-11,190,544,345.06

Finding the Fourth Proportional to 12,321,710,494.25, 18,378,969,373.26 and 11,190,544,345.06

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Solution

The fourth proportional to 12,321,710,494.25, 18,378,969,373.26 and 11,190,544,345.06 is: 16,691,730,574.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,321,710,494.25 : 18,378,969,373.26 = 11,190,544,345.06 : x
  2. Step 2: Convert to fraction form
    12,321,710,494.25/18,378,969,373.26 = 11,190,544,345.06/x
  3. Step 3: Cross multiply
    12,321,710,494.25x = 18,378,969,373.26 × 11,190,544,345.06
  4. Step 4: Simplify right side
    12,321,710,494.25x = 205,670,671,787,928,846,336
  5. Step 5: Solve for x
    x = 205,670,671,787,928,846,336/12,321,710,494.25
  6. Step 6: Final answer
    x = 16,691,730,574.58

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Double scale
Find fourth proportional to 12,321,710,495.25, 18,378,969,374.75 and 11,190,544,346.06
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.