Finding the Fourth Proportional to 5,618,983.61, 8,428,129.45 and 3,460,420.08
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Solution
The fourth proportional to 5,618,983.61, 8,428,129.45 and 3,460,420.08 is: 5,190,417.06
Step by Step Solution
- Step 1: Write the proportion equation
5,618,983.61 : 8,428,129.45 = 3,460,420.08 : x - Step 2: Convert to fraction form
5,618,983.61/8,428,129.45 = 3,460,420.08/x - Step 3: Cross multiply
5,618,983.61x = 8,428,129.45 × 3,460,420.08 - Step 4: Simplify right side
5,618,983.61x = 29,164,868,376,968.30 - Step 5: Solve for x
x = 29,164,868,376,968.30/5,618,983.61 - Step 6: Final answer
x = 5,190,417.06
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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.