Finding the Fourth Proportional to 20,120,378,420.01, 27,765,313,825.06 and 10,964,712,838.50
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Solution
The fourth proportional to 20,120,378,420.01, 27,765,313,825.06 and 10,964,712,838.50 is: 15,130,863,177.99
Step by Step Solution
- Step 1: Write the proportion equation
20,120,378,420.01 : 27,765,313,825.06 = 10,964,712,838.50 : x - Step 2: Convert to fraction form
20,120,378,420.01/27,765,313,825.06 = 10,964,712,838.50/x - Step 3: Cross multiply
20,120,378,420.01x = 27,765,313,825.06 × 10,964,712,838.50 - Step 4: Simplify right side
20,120,378,420.01x = 304,438,692,962,638,888,960 - Step 5: Solve for x
x = 304,438,692,962,638,888,960/20,120,378,420.01 - Step 6: Final answer
x = 15,130,863,177.99
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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.