Finding the Fourth Proportional to 19,987,351.48, 29,935,621.14 and 15,642,330.04
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Solution
The fourth proportional to 19,987,351.48, 29,935,621.14 and 15,642,330.04 is: 23,427,959.74
Step by Step Solution
- Step 1: Write the proportion equation
19,987,351.48 : 29,935,621.14 = 15,642,330.04 : x - Step 2: Convert to fraction form
19,987,351.48/29,935,621.14 = 15,642,330.04/x - Step 3: Cross multiply
19,987,351.48x = 29,935,621.14 × 15,642,330.04 - Step 4: Simplify right side
19,987,351.48x = 468,262,865,824,281 - Step 5: Solve for x
x = 468,262,865,824,281/19,987,351.48 - Step 6: Final answer
x = 23,427,959.74
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.