Finding the Fourth Proportional to 3,899,633,130.09, 5,381,493,719.40 and 2,228,918,143.55
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Solution
The fourth proportional to 3,899,633,130.09, 5,381,493,719.40 and 2,228,918,143.55 is: 3,075,907,038.02
Step by Step Solution
- Step 1: Write the proportion equation
3,899,633,130.09 : 5,381,493,719.40 = 2,228,918,143.55 : x - Step 2: Convert to fraction form
3,899,633,130.09/5,381,493,719.40 = 2,228,918,143.55/x - Step 3: Cross multiply
3,899,633,130.09x = 5,381,493,719.40 × 2,228,918,143.55 - Step 4: Simplify right side
3,899,633,130.09x = 11,994,908,990,544,123,904 - Step 5: Solve for x
x = 11,994,908,990,544,123,904/3,899,633,130.09 - Step 6: Final answer
x = 3,075,907,038.02
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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.