Finding the Fourth Proportional to 31,703,865.08, 43,751,340.20 and 19,313,954.75
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Solution
The fourth proportional to 31,703,865.08, 43,751,340.20 and 19,313,954.75 is: 26,653,261.46
Step by Step Solution
- Step 1: Write the proportion equation
31,703,865.08 : 43,751,340.20 = 19,313,954.75 : x - Step 2: Convert to fraction form
31,703,865.08/43,751,340.20 = 19,313,954.75/x - Step 3: Cross multiply
31,703,865.08x = 43,751,340.20 × 19,313,954.75 - Step 4: Simplify right side
31,703,865.08x = 845,011,405,032,319.25 - Step 5: Solve for x
x = 845,011,405,032,319.25/31,703,865.08 - Step 6: Final answer
x = 26,653,261.46
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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.