Finding the Fourth Proportional to 268,908,387.30, 371,112,578.70 and 149,838,883.62
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Solution
The fourth proportional to 268,908,387.30, 371,112,578.70 and 149,838,883.62 is: 206,788,248.77
Step by Step Solution
- Step 1: Write the proportion equation
268,908,387.30 : 371,112,578.70 = 149,838,883.62 : x - Step 2: Convert to fraction form
268,908,387.30/371,112,578.70 = 149,838,883.62/x - Step 3: Cross multiply
268,908,387.30x = 371,112,578.70 × 149,838,883.62 - Step 4: Simplify right side
268,908,387.30x = 55,607,094,489,747,392 - Step 5: Solve for x
x = 55,607,094,489,747,392/268,908,387.30 - Step 6: Final answer
x = 206,788,248.77
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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.