Finding the Fourth Proportional to 247,489,809.78, 371,177,122.71 and 92,116,790.91
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Solution
The fourth proportional to 247,489,809.78, 371,177,122.71 and 92,116,790.91 is: 138,153,750.39
Step by Step Solution
- Step 1: Write the proportion equation
247,489,809.78 : 371,177,122.71 = 92,116,790.91 : x - Step 2: Convert to fraction form
247,489,809.78/371,177,122.71 = 92,116,790.91/x - Step 3: Cross multiply
247,489,809.78x = 371,177,122.71 × 92,116,790.91 - Step 4: Simplify right side
247,489,809.78x = 34,191,645,403,252,480 - Step 5: Solve for x
x = 34,191,645,403,252,480/247,489,809.78 - Step 6: Final answer
x = 138,153,750.39
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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.