Finding the Fourth Proportional to 8,696,053.49, 12,985,520.37 and 7,101,779.09
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Solution
The fourth proportional to 8,696,053.49, 12,985,520.37 and 7,101,779.09 is: 10,604,844.73
Step by Step Solution
- Step 1: Write the proportion equation
8,696,053.49 : 12,985,520.37 = 7,101,779.09 : x - Step 2: Convert to fraction form
8,696,053.49/12,985,520.37 = 7,101,779.09/x - Step 3: Cross multiply
8,696,053.49x = 12,985,520.37 × 7,101,779.09 - Step 4: Simplify right side
8,696,053.49x = 92,220,296,944,875.80 - Step 5: Solve for x
x = 92,220,296,944,875.80/8,696,053.49 - Step 6: Final answer
x = 10,604,844.73
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.