Finding the Fourth Proportional to 5,217,988.16, 7,197,773.12 and 3,281,182.40
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Solution
The fourth proportional to 5,217,988.16, 7,197,773.12 and 3,281,182.40 is: 4,526,113.47
Step by Step Solution
- Step 1: Write the proportion equation
5,217,988.16 : 7,197,773.12 = 3,281,182.40 : x - Step 2: Convert to fraction form
5,217,988.16/7,197,773.12 = 3,281,182.40/x - Step 3: Cross multiply
5,217,988.16x = 7,197,773.12 × 3,281,182.40 - Step 4: Simplify right side
5,217,988.16x = 23,617,206,480,537.09 - Step 5: Solve for x
x = 23,617,206,480,537.09/5,217,988.16 - Step 6: Final answer
x = 4,526,113.47
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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.