Finding the Fourth Proportional to 3,899,633,177.07, 5,381,493,784.47 and 2,228,918,190.93
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Solution
The fourth proportional to 3,899,633,177.07, 5,381,493,784.47 and 2,228,918,190.93 is: 3,075,907,103.55
Step by Step Solution
- Step 1: Write the proportion equation
3,899,633,177.07 : 5,381,493,784.47 = 2,228,918,190.93 : x - Step 2: Convert to fraction form
3,899,633,177.07/5,381,493,784.47 = 2,228,918,190.93/x - Step 3: Cross multiply
3,899,633,177.07x = 5,381,493,784.47 × 2,228,918,190.93 - Step 4: Simplify right side
3,899,633,177.07x = 11,994,909,390,581,911,552 - Step 5: Solve for x
x = 11,994,909,390,581,911,552/3,899,633,177.07 - Step 6: Final answer
x = 3,075,907,103.55
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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.