Finding the Fourth Proportional to 19,937,448.20, 27,518,797.34 and 12,985,449.05
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Solution
The fourth proportional to 19,937,448.20, 27,518,797.34 and 12,985,449.05 is: 17,923,253.63
Step by Step Solution
- Step 1: Write the proportion equation
19,937,448.20 : 27,518,797.34 = 12,985,449.05 : x - Step 2: Convert to fraction form
19,937,448.20/27,518,797.34 = 12,985,449.05/x - Step 3: Cross multiply
19,937,448.20x = 27,518,797.34 × 12,985,449.05 - Step 4: Simplify right side
19,937,448.20x = 357,343,940,828,410.75 - Step 5: Solve for x
x = 357,343,940,828,410.75/19,937,448.20 - Step 6: Final answer
x = 17,923,253.63
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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.