Finding the Fourth Proportional to 7,228,001.40, 9,974,954.70 and 4,326,830.88
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Solution
The fourth proportional to 7,228,001.40, 9,974,954.70 and 4,326,830.88 is: 5,971,213.84
Step by Step Solution
- Step 1: Write the proportion equation
7,228,001.40 : 9,974,954.70 = 4,326,830.88 : x - Step 2: Convert to fraction form
7,228,001.40/9,974,954.70 = 4,326,830.88/x - Step 3: Cross multiply
7,228,001.40x = 9,974,954.70 × 4,326,830.88 - Step 4: Simplify right side
7,228,001.40x = 43,159,942,022,561.13 - Step 5: Solve for x
x = 43,159,942,022,561.13/7,228,001.40 - Step 6: Final answer
x = 5,971,213.84
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1.5x scale
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.