Finding the Fourth Proportional to 635,747,139.84, 877,133,874.24 and 371,238,326.40
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Solution
The fourth proportional to 635,747,139.84, 877,133,874.24 and 371,238,326.40 is: 512,193,749.84
Step by Step Solution
- Step 1: Write the proportion equation
635,747,139.84 : 877,133,874.24 = 371,238,326.40 : x - Step 2: Convert to fraction form
635,747,139.84/877,133,874.24 = 371,238,326.40/x - Step 3: Cross multiply
635,747,139.84x = 877,133,874.24 × 371,238,326.40 - Step 4: Simplify right side
635,747,139.84x = 325,625,711,501,605,632 - Step 5: Solve for x
x = 325,625,711,501,605,632/635,747,139.84 - Step 6: Final answer
x = 512,193,749.84
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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.