Finding the Fourth Proportional to 19,937,462.71, 27,518,817.36 and 12,985,463.56
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Solution
The fourth proportional to 19,937,462.71, 27,518,817.36 and 12,985,463.56 is: 17,923,273.65
Step by Step Solution
- Step 1: Write the proportion equation
19,937,462.71 : 27,518,817.36 = 12,985,463.56 : x - Step 2: Convert to fraction form
19,937,462.71/27,518,817.36 = 12,985,463.56/x - Step 3: Cross multiply
19,937,462.71x = 27,518,817.36 × 12,985,463.56 - Step 4: Simplify right side
19,937,462.71x = 357,344,600,042,575.44 - Step 5: Solve for x
x = 357,344,600,042,575.44/19,937,462.71 - Step 6: Final answer
x = 17,923,273.65
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1.5x scale
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.