Finding the Fourth Proportional to 20,069,195.80, 27,696,251.52 and 11,248,810.10
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Solution
The fourth proportional to 20,069,195.80, 27,696,251.52 and 11,248,810.10 is: 15,523,784.66
Step by Step Solution
- Step 1: Write the proportion equation
20,069,195.80 : 27,696,251.52 = 11,248,810.10 : x - Step 2: Convert to fraction form
20,069,195.80/27,696,251.52 = 11,248,810.10/x - Step 3: Cross multiply
20,069,195.80x = 27,696,251.52 × 11,248,810.10 - Step 4: Simplify right side
20,069,195.80x = 311,549,873,830,316.31 - Step 5: Solve for x
x = 311,549,873,830,316.31/20,069,195.80 - Step 6: Final answer
x = 15,523,784.66
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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.