Finding the Fourth Proportional to 42,423,574.21, 58,542,884.39 and 25,931,312.44
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Solution
The fourth proportional to 42,423,574.21, 58,542,884.39 and 25,931,312.44 is: 35,784,203.82
Step by Step Solution
- Step 1: Write the proportion equation
42,423,574.21 : 58,542,884.39 = 25,931,312.44 : x - Step 2: Convert to fraction form
42,423,574.21/58,542,884.39 = 25,931,312.44/x - Step 3: Cross multiply
42,423,574.21x = 58,542,884.39 × 25,931,312.44 - Step 4: Simplify right side
42,423,574.21x = 1,518,093,826,126,232.25 - Step 5: Solve for x
x = 1,518,093,826,126,232.25/42,423,574.21 - Step 6: Final answer
x = 35,784,203.82
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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.