Finding the Fourth Proportional to 28,186,548.19, 38,896,774.93 and 16,584,863.11
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Solution
The fourth proportional to 28,186,548.19, 38,896,774.93 and 16,584,863.11 is: 22,886,721.82
Step by Step Solution
- Step 1: Write the proportion equation
28,186,548.19 : 38,896,774.93 = 16,584,863.11 : x - Step 2: Convert to fraction form
28,186,548.19/38,896,774.93 = 16,584,863.11/x - Step 3: Cross multiply
28,186,548.19x = 38,896,774.93 × 16,584,863.11 - Step 4: Simplify right side
28,186,548.19x = 645,097,687,558,019 - Step 5: Solve for x
x = 645,097,687,558,019/28,186,548.19 - Step 6: Final answer
x = 22,886,721.82
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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.