Finding the Fourth Proportional to 42,694,121.88, 58,918,349.70 and 23,115,417.48
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Solution
The fourth proportional to 42,694,121.88, 58,918,349.70 and 23,115,417.48 is: 31,899,525.99
Step by Step Solution
- Step 1: Write the proportion equation
42,694,121.88 : 58,918,349.70 = 23,115,417.48 : x - Step 2: Convert to fraction form
42,694,121.88/58,918,349.70 = 23,115,417.48/x - Step 3: Cross multiply
42,694,121.88x = 58,918,349.70 × 23,115,417.48 - Step 4: Simplify right side
42,694,121.88x = 1,361,922,250,548,132.75 - Step 5: Solve for x
x = 1,361,922,250,548,132.75/42,694,121.88 - Step 6: Final answer
x = 31,899,525.99
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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.