Finding the Fourth Proportional to 31,259,881.68, 43,159,702.08 and 19,517,047.44
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Solution
The fourth proportional to 31,259,881.68, 43,159,702.08 and 19,517,047.44 is: 26,946,677.59
Step by Step Solution
- Step 1: Write the proportion equation
31,259,881.68 : 43,159,702.08 = 19,517,047.44 : x - Step 2: Convert to fraction form
31,259,881.68/43,159,702.08 = 19,517,047.44/x - Step 3: Cross multiply
31,259,881.68x = 43,159,702.08 × 19,517,047.44 - Step 4: Simplify right side
31,259,881.68x = 842,349,952,991,626.75 - Step 5: Solve for x
x = 842,349,952,991,626.75/31,259,881.68 - Step 6: Final answer
x = 26,946,677.59
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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.