Finding the Fourth Proportional to 31,509,101.70, 47,263,652.55 and 26,785,181.70
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Solution
The fourth proportional to 31,509,101.70, 47,263,652.55 and 26,785,181.70 is: 40,177,772.55
Step by Step Solution
- Step 1: Write the proportion equation
31,509,101.70 : 47,263,652.55 = 26,785,181.70 : x - Step 2: Convert to fraction form
31,509,101.70/47,263,652.55 = 26,785,181.70/x - Step 3: Cross multiply
31,509,101.70x = 47,263,652.55 × 26,785,181.70 - Step 4: Simplify right side
31,509,101.70x = 1,265,965,521,357,418.25 - Step 5: Solve for x
x = 1,265,965,521,357,418.25/31,509,101.70 - Step 6: Final answer
x = 40,177,772.55
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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.