Finding the Fourth Proportional to 19,987,873.76, 27,583,274.40 and 10,820,516
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Solution
The fourth proportional to 19,987,873.76, 27,583,274.40 and 10,820,516 is: 14,932,316.74
Step by Step Solution
- Step 1: Write the proportion equation
19,987,873.76 : 27,583,274.40 = 10,820,516 : x - Step 2: Convert to fraction form
19,987,873.76/27,583,274.40 = 10,820,516/x - Step 3: Cross multiply
19,987,873.76x = 27,583,274.40 × 10,820,516 - Step 4: Simplify right side
19,987,873.76x = 298,465,261,977,590.38 - Step 5: Solve for x
x = 298,465,261,977,590.38/19,987,873.76 - Step 6: Final answer
x = 14,932,316.74
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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.