Finding the Fourth Proportional to 128,387,993,552.37, 192,414,461,237.82 and 71,725,567,795.88
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Solution
The fourth proportional to 128,387,993,552.37, 192,414,461,237.82 and 71,725,567,795.88 is: 107,494,759,459.66
Step by Step Solution
- Step 1: Write the proportion equation
128,387,993,552.37 : 192,414,461,237.82 = 71,725,567,795.88 : x - Step 2: Convert to fraction form
128,387,993,552.37/192,414,461,237.82 = 71,725,567,795.88/x - Step 3: Cross multiply
128,387,993,552.37x = 192,414,461,237.82 × 71,725,567,795.88 - Step 4: Simplify right side
128,387,993,552.37x = 13,801,036,484,420,021,780,480 - Step 5: Solve for x
x = 13,801,036,484,420,021,780,480/128,387,993,552.37 - Step 6: Final answer
x = 107,494,759,459.66
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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.