Finding the Fourth Proportional to 4,791,805.84, 6,612,784.12 and 2,616,435.20
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Solution
The fourth proportional to 4,791,805.84, 6,612,784.12 and 2,616,435.20 is: 3,610,730.84
Step by Step Solution
- Step 1: Write the proportion equation
4,791,805.84 : 6,612,784.12 = 2,616,435.20 : x - Step 2: Convert to fraction form
4,791,805.84/6,612,784.12 = 2,616,435.20/x - Step 3: Cross multiply
4,791,805.84x = 6,612,784.12 × 2,616,435.20 - Step 4: Simplify right side
4,791,805.84x = 17,301,921,141,569.03 - Step 5: Solve for x
x = 17,301,921,141,569.03/4,791,805.84 - Step 6: Final answer
x = 3,610,730.84
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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.