Finding the Fourth Proportional to 291,440,261.92, 402,187,953.36 and 167,678,456.80
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Solution
The fourth proportional to 291,440,261.92, 402,187,953.36 and 167,678,456.80 is: 231,396,495.87
Step by Step Solution
- Step 1: Write the proportion equation
291,440,261.92 : 402,187,953.36 = 167,678,456.80 : x - Step 2: Convert to fraction form
291,440,261.92/402,187,953.36 = 167,678,456.80/x - Step 3: Cross multiply
291,440,261.92x = 402,187,953.36 × 167,678,456.80 - Step 4: Simplify right side
291,440,261.92x = 67,438,255,362,955,184 - Step 5: Solve for x
x = 67,438,255,362,955,184/291,440,261.92 - Step 6: Final answer
x = 231,396,495.87
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.