Finding the Fourth Proportional to 518,538,696.68, 778,063,409.14 and 242,149,741.71
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Solution
The fourth proportional to 518,538,696.68, 778,063,409.14 and 242,149,741.71 is: 363,343,863.75
Step by Step Solution
- Step 1: Write the proportion equation
518,538,696.68 : 778,063,409.14 = 242,149,741.71 : x - Step 2: Convert to fraction form
518,538,696.68/778,063,409.14 = 242,149,741.71/x - Step 3: Cross multiply
518,538,696.68x = 778,063,409.14 × 242,149,741.71 - Step 4: Simplify right side
518,538,696.68x = 188,407,853,557,253,056 - Step 5: Solve for x
x = 188,407,853,557,253,056/518,538,696.68 - Step 6: Final answer
x = 363,343,863.75
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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.