Finding the Fourth Proportional to 2,588,675,838.99, 3,882,990,338.39 and 818,046,848.93
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Solution
The fourth proportional to 2,588,675,838.99, 3,882,990,338.39 and 818,046,848.93 is: 1,227,062,872.41
Step by Step Solution
- Step 1: Write the proportion equation
2,588,675,838.99 : 3,882,990,338.39 = 818,046,848.93 : x - Step 2: Convert to fraction form
2,588,675,838.99/3,882,990,338.39 = 818,046,848.93/x - Step 3: Cross multiply
2,588,675,838.99x = 3,882,990,338.39 × 818,046,848.93 - Step 4: Simplify right side
2,588,675,838.99x = 3,176,468,010,739,738,624 - Step 5: Solve for x
x = 3,176,468,010,739,738,624/2,588,675,838.99 - Step 6: Final answer
x = 1,227,062,872.41
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1.5x scale
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.