Finding the Fourth Proportional to 152,635,949.94, 210,618,479.97 and 103,183,920.66
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Solution
The fourth proportional to 152,635,949.94, 210,618,479.97 and 103,183,920.66 is: 142,380,877.74
Step by Step Solution
- Step 1: Write the proportion equation
152,635,949.94 : 210,618,479.97 = 103,183,920.66 : x - Step 2: Convert to fraction form
152,635,949.94/210,618,479.97 = 103,183,920.66/x - Step 3: Cross multiply
152,635,949.94x = 210,618,479.97 × 103,183,920.66 - Step 4: Simplify right side
152,635,949.94x = 21,732,440,526,754,280 - Step 5: Solve for x
x = 21,732,440,526,754,280/152,635,949.94 - Step 6: Final answer
x = 142,380,877.74
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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.