Finding the Fourth Proportional to 118,316,959.86, 163,192,725.08 and 83,042,636.08
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Solution
The fourth proportional to 118,316,959.86, 163,192,725.08 and 83,042,636.08 is: 114,539,404.12
Step by Step Solution
- Step 1: Write the proportion equation
118,316,959.86 : 163,192,725.08 = 83,042,636.08 : x - Step 2: Convert to fraction form
118,316,959.86/163,192,725.08 = 83,042,636.08/x - Step 3: Cross multiply
118,316,959.86x = 163,192,725.08 × 83,042,636.08 - Step 4: Simplify right side
118,316,959.86x = 13,551,954,079,281,950 - Step 5: Solve for x
x = 13,551,954,079,281,950/118,316,959.86 - Step 6: Final answer
x = 114,539,404.12
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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.