Finding the Fourth Proportional to 266,771,623.75, 368,144,840.78 and 144,678,055.75
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Solution
The fourth proportional to 266,771,623.75, 368,144,840.78 and 144,678,055.75 is: 199,655,716.94
Step by Step Solution
- Step 1: Write the proportion equation
266,771,623.75 : 368,144,840.78 = 144,678,055.75 : x - Step 2: Convert to fraction form
266,771,623.75/368,144,840.78 = 144,678,055.75/x - Step 3: Cross multiply
266,771,623.75x = 368,144,840.78 × 144,678,055.75 - Step 4: Simplify right side
266,771,623.75x = 53,262,479,798,443,712 - Step 5: Solve for x
x = 53,262,479,798,443,712/266,771,623.75 - Step 6: Final answer
x = 199,655,716.94
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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.