Finding the Fourth Proportional to 157,468,341.20, 236,202,511.80 and 49,762,965.20
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Solution
The fourth proportional to 157,468,341.20, 236,202,511.80 and 49,762,965.20 is: 74,644,447.80
Step by Step Solution
- Step 1: Write the proportion equation
157,468,341.20 : 236,202,511.80 = 49,762,965.20 : x - Step 2: Convert to fraction form
157,468,341.20/236,202,511.80 = 49,762,965.20/x - Step 3: Cross multiply
157,468,341.20x = 236,202,511.80 × 49,762,965.20 - Step 4: Simplify right side
157,468,341.20x = 11,754,137,374,855,990 - Step 5: Solve for x
x = 11,754,137,374,855,990/157,468,341.20 - Step 6: Final answer
x = 74,644,447.80
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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.