Finding the Fourth Proportional to 19,538,977.91, 29,271,473.06 and 13,042,464.33
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Solution
The fourth proportional to 19,538,977.91, 29,271,473.06 and 13,042,464.33 is: 19,539,002.76
Step by Step Solution
- Step 1: Write the proportion equation
19,538,977.91 : 29,271,473.06 = 13,042,464.33 : x - Step 2: Convert to fraction form
19,538,977.91/29,271,473.06 = 13,042,464.33/x - Step 3: Cross multiply
19,538,977.91x = 29,271,473.06 × 13,042,464.33 - Step 4: Simplify right side
19,538,977.91x = 381,772,143,206,393.62 - Step 5: Solve for x
x = 381,772,143,206,393.62/19,538,977.91 - Step 6: Final answer
x = 19,539,002.76
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.