Finding the Fourth Proportional to 251,615,431,377.18, 377,476,153,887.78 and 81,621,746,866.08
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Solution
The fourth proportional to 251,615,431,377.18, 377,476,153,887.78 and 81,621,746,866.08 is: 122,449,815,227.84
Step by Step Solution
- Step 1: Write the proportion equation
251,615,431,377.18 : 377,476,153,887.78 = 81,621,746,866.08 : x - Step 2: Convert to fraction form
251,615,431,377.18/377,476,153,887.78 = 81,621,746,866.08/x - Step 3: Cross multiply
251,615,431,377.18x = 377,476,153,887.78 × 81,621,746,866.08 - Step 4: Simplify right side
251,615,431,377.18x = 30,810,263,080,609,840,627,712 - Step 5: Solve for x
x = 30,810,263,080,609,840,627,712/251,615,431,377.18 - Step 6: Final answer
x = 122,449,815,227.84
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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.