Finding the Fourth Proportional to 9,153,324.98, 13,729,988.15 and 7,133,080.98
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Solution
The fourth proportional to 9,153,324.98, 13,729,988.15 and 7,133,080.98 is: 10,699,622.00
Step by Step Solution
- Step 1: Write the proportion equation
9,153,324.98 : 13,729,988.15 = 7,133,080.98 : x - Step 2: Convert to fraction form
9,153,324.98/13,729,988.15 = 7,133,080.98/x - Step 3: Cross multiply
9,153,324.98x = 13,729,988.15 × 7,133,080.98 - Step 4: Simplify right side
9,153,324.98x = 97,937,117,328,390.39 - Step 5: Solve for x
x = 97,937,117,328,390.39/9,153,324.98 - Step 6: Final answer
x = 10,699,622.00
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Double scale
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Similar ratio
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1.5x scale
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.