Finding the Fourth Proportional to 20,643,066.19, 30,963,897.99 and 5,290,506.62
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Solution
The fourth proportional to 20,643,066.19, 30,963,897.99 and 5,290,506.62 is: 7,935,580.20
Step by Step Solution
- Step 1: Write the proportion equation
20,643,066.19 : 30,963,897.99 = 5,290,506.62 : x - Step 2: Convert to fraction form
20,643,066.19/30,963,897.99 = 5,290,506.62/x - Step 3: Cross multiply
20,643,066.19x = 30,963,897.99 × 5,290,506.62 - Step 4: Simplify right side
20,643,066.19x = 163,814,707,297,099.69 - Step 5: Solve for x
x = 163,814,707,297,099.69/20,643,066.19 - Step 6: Final answer
x = 7,935,580.20
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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.