Finding the Fourth Proportional to 906,929,739,101.15, 1,251,562,992,094.70 and 489,783,544,142.05
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Solution
The fourth proportional to 906,929,739,101.15, 1,251,562,992,094.70 and 489,783,544,142.05 is: 675,901,265,066.80
Step by Step Solution
- Step 1: Write the proportion equation
906,929,739,101.15 : 1,251,562,992,094.70 = 489,783,544,142.05 : x - Step 2: Convert to fraction form
906,929,739,101.15/1,251,562,992,094.70 = 489,783,544,142.05/x - Step 3: Cross multiply
906,929,739,101.15x = 1,251,562,992,094.70 × 489,783,544,142.05 - Step 4: Simplify right side
906,929,739,101.15x = 612,994,957,985,170,692,505,600 - Step 5: Solve for x
x = 612,994,957,985,170,692,505,600/906,929,739,101.15 - Step 6: Final answer
x = 675,901,265,066.80
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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.