Finding the Fourth Proportional to 220,860,598,208.46, 331,386,568,935.55 and 118,637,913,720.81
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Solution
The fourth proportional to 220,860,598,208.46, 331,386,568,935.55 and 118,637,913,720.81 is: 178,008,261,738.49
Step by Step Solution
- Step 1: Write the proportion equation
220,860,598,208.46 : 331,386,568,935.55 = 118,637,913,720.81 : x - Step 2: Convert to fraction form
220,860,598,208.46/331,386,568,935.55 = 118,637,913,720.81/x - Step 3: Cross multiply
220,860,598,208.46x = 331,386,568,935.55 × 118,637,913,720.81 - Step 4: Simplify right side
220,860,598,208.46x = 39,315,011,173,611,034,640,384 - Step 5: Solve for x
x = 39,315,011,173,611,034,640,384/220,860,598,208.46 - Step 6: Final answer
x = 178,008,261,738.49
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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.