Finding the Fourth Proportional to 468,626,077.68, 646,703,976.92 and 259,781,691.12
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Solution
The fourth proportional to 468,626,077.68, 646,703,976.92 and 259,781,691.12 is: 358,498,728.05
Step by Step Solution
- Step 1: Write the proportion equation
468,626,077.68 : 646,703,976.92 = 259,781,691.12 : x - Step 2: Convert to fraction form
468,626,077.68/646,703,976.92 = 259,781,691.12/x - Step 3: Cross multiply
468,626,077.68x = 646,703,976.92 × 259,781,691.12 - Step 4: Simplify right side
468,626,077.68x = 168,001,852,778,307,040 - Step 5: Solve for x
x = 168,001,852,778,307,040/468,626,077.68 - Step 6: Final answer
x = 358,498,728.05
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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.