Finding the Fourth Proportional to 421,526,708.97, 632,653,270.08 and 292,225,121.07
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Solution
The fourth proportional to 421,526,708.97, 632,653,270.08 and 292,225,121.07 is: 438,589,476.09
Step by Step Solution
- Step 1: Write the proportion equation
421,526,708.97 : 632,653,270.08 = 292,225,121.07 : x - Step 2: Convert to fraction form
421,526,708.97/632,653,270.08 = 292,225,121.07/x - Step 3: Cross multiply
421,526,708.97x = 632,653,270.08 × 292,225,121.07 - Step 4: Simplify right side
421,526,708.97x = 184,877,178,444,459,424 - Step 5: Solve for x
x = 184,877,178,444,459,424/421,526,708.97 - Step 6: Final answer
x = 438,589,476.09
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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.