Finding the Fourth Proportional to 40,138,391.60, 55,392,503.04 and 22,497,620.20
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Solution
The fourth proportional to 40,138,391.60, 55,392,503.04 and 22,497,620.20 is: 31,047,569.31
Step by Step Solution
- Step 1: Write the proportion equation
40,138,391.60 : 55,392,503.04 = 22,497,620.20 : x - Step 2: Convert to fraction form
40,138,391.60/55,392,503.04 = 22,497,620.20/x - Step 3: Cross multiply
40,138,391.60x = 55,392,503.04 × 22,497,620.20 - Step 4: Simplify right side
40,138,391.60x = 1,246,199,495,321,265.25 - Step 5: Solve for x
x = 1,246,199,495,321,265.25/40,138,391.60 - Step 6: Final answer
x = 31,047,569.31
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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.