Finding the Fourth Proportional to 485,769,409.68, 728,653,543.44 and 158,244,386.88
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Solution
The fourth proportional to 485,769,409.68, 728,653,543.44 and 158,244,386.88 is: 237,366,394.28
Step by Step Solution
- Step 1: Write the proportion equation
485,769,409.68 : 728,653,543.44 = 158,244,386.88 : x - Step 2: Convert to fraction form
485,769,409.68/728,653,543.44 = 158,244,386.88/x - Step 3: Cross multiply
485,769,409.68x = 728,653,543.44 × 158,244,386.88 - Step 4: Simplify right side
485,769,409.68x = 115,305,333,229,602,256 - Step 5: Solve for x
x = 115,305,333,229,602,256/485,769,409.68 - Step 6: Final answer
x = 237,366,394.28
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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.