Finding the Fourth Proportional to 19,476,619.20, 26,872,905.52 and 12,592,818.08
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Solution
The fourth proportional to 19,476,619.20, 26,872,905.52 and 12,592,818.08 is: 17,374,966.72
Step by Step Solution
- Step 1: Write the proportion equation
19,476,619.20 : 26,872,905.52 = 12,592,818.08 : x - Step 2: Convert to fraction form
19,476,619.20/26,872,905.52 = 12,592,818.08/x - Step 3: Cross multiply
19,476,619.20x = 26,872,905.52 × 12,592,818.08 - Step 4: Simplify right side
19,476,619.20x = 338,405,610,494,387.81 - Step 5: Solve for x
x = 338,405,610,494,387.81/19,476,619.20 - Step 6: Final answer
x = 17,374,966.72
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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.