Finding the Fourth Proportional to 42,694,515.12, 58,917,716.40 and 23,115,244.53
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Solution
The fourth proportional to 42,694,515.12, 58,917,716.40 and 23,115,244.53 is: 31,898,650.63
Step by Step Solution
- Step 1: Write the proportion equation
42,694,515.12 : 58,917,716.40 = 23,115,244.53 : x - Step 2: Convert to fraction form
42,694,515.12/58,917,716.40 = 23,115,244.53/x - Step 3: Cross multiply
42,694,515.12x = 58,917,716.40 × 23,115,244.53 - Step 4: Simplify right side
42,694,515.12x = 1,361,897,421,735,191.25 - Step 5: Solve for x
x = 1,361,897,421,735,191.25/42,694,515.12 - Step 6: Final answer
x = 31,898,650.63
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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.