Finding the Fourth Proportional to 20,120,378,422.51, 27,765,313,828.52 and 10,964,712,841
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Solution
The fourth proportional to 20,120,378,422.51, 27,765,313,828.52 and 10,964,712,841 is: 15,130,863,181.45
Step by Step Solution
- Step 1: Write the proportion equation
20,120,378,422.51 : 27,765,313,828.52 = 10,964,712,841 : x - Step 2: Convert to fraction form
20,120,378,422.51/27,765,313,828.52 = 10,964,712,841/x - Step 3: Cross multiply
20,120,378,422.51x = 27,765,313,828.52 × 10,964,712,841 - Step 4: Simplify right side
20,120,378,422.51x = 304,438,693,069,968,113,664 - Step 5: Solve for x
x = 304,438,693,069,968,113,664/20,120,378,422.51 - Step 6: Final answer
x = 15,130,863,181.45
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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.