Home / 19,907,117,046.25-27,478,368,347.16-15,845,469,095.81

Finding the Fourth Proportional to 19,907,117,046.25, 27,478,368,347.16 and 15,845,469,095.81

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Solution

The fourth proportional to 19,907,117,046.25, 27,478,368,347.16 and 15,845,469,095.81 is: 21,871,958,427.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,907,117,046.25 : 27,478,368,347.16 = 15,845,469,095.81 : x
  2. Step 2: Convert to fraction form
    19,907,117,046.25/27,478,368,347.16 = 15,845,469,095.81/x
  3. Step 3: Cross multiply
    19,907,117,046.25x = 27,478,368,347.16 × 15,845,469,095.81
  4. Step 4: Simplify right side
    19,907,117,046.25x = 435,407,636,448,294,141,952
  5. Step 5: Solve for x
    x = 435,407,636,448,294,141,952/19,907,117,046.25
  6. Step 6: Final answer
    x = 21,871,958,427.56

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Double scale
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1.5x scale

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.