Home / 15,087,975,036.39-20,820,467,391.44-8,313,414,504.51

Finding the Fourth Proportional to 15,087,975,036.39, 20,820,467,391.44 and 8,313,414,504.51

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Solution

The fourth proportional to 15,087,975,036.39, 20,820,467,391.44 and 8,313,414,504.51 is: 11,471,995,094.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,087,975,036.39 : 20,820,467,391.44 = 8,313,414,504.51 : x
  2. Step 2: Convert to fraction form
    15,087,975,036.39/20,820,467,391.44 = 8,313,414,504.51/x
  3. Step 3: Cross multiply
    15,087,975,036.39x = 20,820,467,391.44 × 8,313,414,504.51
  4. Step 4: Simplify right side
    15,087,975,036.39x = 173,089,175,602,674,761,728
  5. Step 5: Solve for x
    x = 173,089,175,602,674,761,728/15,087,975,036.39
  6. Step 6: Final answer
    x = 11,471,995,094.45

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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.