Finding the Fourth Proportional to 7,700,918.58, 10,623,930.84 and 4,643,434.26
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Solution
The fourth proportional to 7,700,918.58, 10,623,930.84 and 4,643,434.26 is: 6,405,927.28
Step by Step Solution
- Step 1: Write the proportion equation
7,700,918.58 : 10,623,930.84 = 4,643,434.26 : x - Step 2: Convert to fraction form
7,700,918.58/10,623,930.84 = 4,643,434.26/x - Step 3: Cross multiply
7,700,918.58x = 10,623,930.84 × 4,643,434.26 - Step 4: Simplify right side
7,700,918.58x = 49,331,524,438,326.58 - Step 5: Solve for x
x = 49,331,524,438,326.58/7,700,918.58 - Step 6: Final answer
x = 6,405,927.28
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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.