Finding the Fourth Proportional to 21,726,595.44, 29,970,232.66 and 13,563,661.68
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Solution
The fourth proportional to 21,726,595.44, 29,970,232.66 and 13,563,661.68 is: 18,710,068.84
Step by Step Solution
- Step 1: Write the proportion equation
21,726,595.44 : 29,970,232.66 = 13,563,661.68 : x - Step 2: Convert to fraction form
21,726,595.44/29,970,232.66 = 13,563,661.68/x - Step 3: Cross multiply
21,726,595.44x = 29,970,232.66 × 13,563,661.68 - Step 4: Simplify right side
21,726,595.44x = 406,506,096,271,126.44 - Step 5: Solve for x
x = 406,506,096,271,126.44/21,726,595.44 - Step 6: Final answer
x = 18,710,068.84
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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.