Finding the Fourth Proportional to 51,553,412.70, 77,328,369.45 and 13,215,302.70
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Solution
The fourth proportional to 51,553,412.70, 77,328,369.45 and 13,215,302.70 is: 19,822,505.55
Step by Step Solution
- Step 1: Write the proportion equation
51,553,412.70 : 77,328,369.45 = 13,215,302.70 : x - Step 2: Convert to fraction form
51,553,412.70/77,328,369.45 = 13,215,302.70/x - Step 3: Cross multiply
51,553,412.70x = 77,328,369.45 × 13,215,302.70 - Step 4: Simplify right side
51,553,412.70x = 1,021,917,809,579,182.50 - Step 5: Solve for x
x = 1,021,917,809,579,182.50/51,553,412.70 - Step 6: Final answer
x = 19,822,505.55
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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.