Finding the Fourth Proportional to 51,553,412.20, 77,328,368.70 and 13,215,302.20
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Solution
The fourth proportional to 51,553,412.20, 77,328,368.70 and 13,215,302.20 is: 19,822,504.80
Step by Step Solution
- Step 1: Write the proportion equation
51,553,412.20 : 77,328,368.70 = 13,215,302.20 : x - Step 2: Convert to fraction form
51,553,412.20/77,328,368.70 = 13,215,302.20/x - Step 3: Cross multiply
51,553,412.20x = 77,328,368.70 × 13,215,302.20 - Step 4: Simplify right side
51,553,412.20x = 1,021,917,761,003,521.12 - Step 5: Solve for x
x = 1,021,917,761,003,521.12/51,553,412.20 - Step 6: Final answer
x = 19,822,504.80
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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.