Finding the Fourth Proportional to 1,118,498,486.68, 1,543,540,015.62 and 616,708,241.32
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Solution
The fourth proportional to 1,118,498,486.68, 1,543,540,015.62 and 616,708,241.32 is: 851,064,046.82
Step by Step Solution
- Step 1: Write the proportion equation
1,118,498,486.68 : 1,543,540,015.62 = 616,708,241.32 : x - Step 2: Convert to fraction form
1,118,498,486.68/1,543,540,015.62 = 616,708,241.32/x - Step 3: Cross multiply
1,118,498,486.68x = 1,543,540,015.62 × 616,708,241.32 - Step 4: Simplify right side
1,118,498,486.68x = 951,913,848,440,055,552 - Step 5: Solve for x
x = 951,913,848,440,055,552/1,118,498,486.68 - Step 6: Final answer
x = 851,064,046.82
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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.