Finding the Fourth Proportional to 141,844,214.40, 195,753,787.98 and 78,264,242.79
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Solution
The fourth proportional to 141,844,214.40, 195,753,787.98 and 78,264,242.79 is: 108,009,495.17
Step by Step Solution
- Step 1: Write the proportion equation
141,844,214.40 : 195,753,787.98 = 78,264,242.79 : x - Step 2: Convert to fraction form
141,844,214.40/195,753,787.98 = 78,264,242.79/x - Step 3: Cross multiply
141,844,214.40x = 195,753,787.98 × 78,264,242.79 - Step 4: Simplify right side
141,844,214.40x = 15,320,521,989,528,904 - Step 5: Solve for x
x = 15,320,521,989,528,904/141,844,214.40 - Step 6: Final answer
x = 108,009,495.17
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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.