Finding the Fourth Proportional to 7,943,650,620,365.20, 11,915,476,069,315 and 1,906,719,278,101.20
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Solution
The fourth proportional to 7,943,650,620,365.20, 11,915,476,069,315 and 1,906,719,278,101.20 is: 2,860,078,950,460.18
Step by Step Solution
- Step 1: Write the proportion equation
7,943,650,620,365.20 : 11,915,476,069,315 = 1,906,719,278,101.20 : x - Step 2: Convert to fraction form
7,943,650,620,365.20/11,915,476,069,315 = 1,906,719,278,101.20/x - Step 3: Cross multiply
7,943,650,620,365.20x = 11,915,476,069,315 × 1,906,719,278,101.20 - Step 4: Simplify right side
7,943,650,620,365.20x = 22,719,467,929,116,421,914,624,000 - Step 5: Solve for x
x = 22,719,467,929,116,421,914,624,000/7,943,650,620,365.20 - Step 6: Final answer
x = 2,860,078,950,460.18
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.