Finding the Fourth Proportional to 20,726,902.32, 31,117,295.04 and 15,937,954.62
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Solution
The fourth proportional to 20,726,902.32, 31,117,295.04 and 15,937,954.62 is: 23,927,648.65
Step by Step Solution
- Step 1: Write the proportion equation
20,726,902.32 : 31,117,295.04 = 15,937,954.62 : x - Step 2: Convert to fraction form
20,726,902.32/31,117,295.04 = 15,937,954.62/x - Step 3: Cross multiply
20,726,902.32x = 31,117,295.04 × 15,937,954.62 - Step 4: Simplify right side
20,726,902.32x = 495,946,036,244,671.06 - Step 5: Solve for x
x = 495,946,036,244,671.06/20,726,902.32 - Step 6: Final answer
x = 23,927,648.65
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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.