Finding the Fourth Proportional to 7,012,976.08, 9,679,518.09 and 4,113,301.09
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Solution
The fourth proportional to 7,012,976.08, 9,679,518.09 and 4,113,301.09 is: 5,677,300.46
Step by Step Solution
- Step 1: Write the proportion equation
7,012,976.08 : 9,679,518.09 = 4,113,301.09 : x - Step 2: Convert to fraction form
7,012,976.08/9,679,518.09 = 4,113,301.09/x - Step 3: Cross multiply
7,012,976.08x = 9,679,518.09 × 4,113,301.09 - Step 4: Simplify right side
7,012,976.08x = 39,814,772,310,271.72 - Step 5: Solve for x
x = 39,814,772,310,271.72/7,012,976.08 - Step 6: Final answer
x = 5,677,300.46
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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.