Finding the Fourth Proportional to 85,292,106.80, 127,859,689.60 and 46,373,685.92
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Solution
The fourth proportional to 85,292,106.80, 127,859,689.60 and 46,373,685.92 is: 69,517,864.08
Step by Step Solution
- Step 1: Write the proportion equation
85,292,106.80 : 127,859,689.60 = 46,373,685.92 : x - Step 2: Convert to fraction form
85,292,106.80/127,859,689.60 = 46,373,685.92/x - Step 3: Cross multiply
85,292,106.80x = 127,859,689.60 × 46,373,685.92 - Step 4: Simplify right side
85,292,106.80x = 5,929,325,087,339,090 - Step 5: Solve for x
x = 5,929,325,087,339,090/85,292,106.80 - Step 6: Final answer
x = 69,517,864.08
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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.