Finding the Fourth Proportional to 21,730,844.84, 29,988,804.58 and 11,941,291.56
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Solution
The fourth proportional to 21,730,844.84, 29,988,804.58 and 11,941,291.56 is: 16,479,113.52
Step by Step Solution
- Step 1: Write the proportion equation
21,730,844.84 : 29,988,804.58 = 11,941,291.56 : x - Step 2: Convert to fraction form
21,730,844.84/29,988,804.58 = 11,941,291.56/x - Step 3: Cross multiply
21,730,844.84x = 29,988,804.58 × 11,941,291.56 - Step 4: Simplify right side
21,730,844.84x = 358,105,059,025,643.31 - Step 5: Solve for x
x = 358,105,059,025,643.31/21,730,844.84 - Step 6: Final answer
x = 16,479,113.52
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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.