Finding the Fourth Proportional to 232,578,740.34, 320,965,508.03 and 128,163,537.72
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Solution
The fourth proportional to 232,578,740.34, 320,965,508.03 and 128,163,537.72 is: 176,869,454.77
Step by Step Solution
- Step 1: Write the proportion equation
232,578,740.34 : 320,965,508.03 = 128,163,537.72 : x - Step 2: Convert to fraction form
232,578,740.34/320,965,508.03 = 128,163,537.72/x - Step 3: Cross multiply
232,578,740.34x = 320,965,508.03 × 128,163,537.72 - Step 4: Simplify right side
232,578,740.34x = 41,136,074,994,581,048 - Step 5: Solve for x
x = 41,136,074,994,581,048/232,578,740.34 - Step 6: Final answer
x = 176,869,454.77
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.