Finding the Fourth Proportional to 18,832,488.78, 28,248,995.58 and 5,369,316.78
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Solution
The fourth proportional to 18,832,488.78, 28,248,995.58 and 5,369,316.78 is: 8,054,049.99
Step by Step Solution
- Step 1: Write the proportion equation
18,832,488.78 : 28,248,995.58 = 5,369,316.78 : x - Step 2: Convert to fraction form
18,832,488.78/28,248,995.58 = 5,369,316.78/x - Step 3: Cross multiply
18,832,488.78x = 28,248,995.58 × 5,369,316.78 - Step 4: Simplify right side
18,832,488.78x = 151,677,805,985,839.84 - Step 5: Solve for x
x = 151,677,805,985,839.84/18,832,488.78 - Step 6: Final answer
x = 8,054,049.99
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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.