Finding the Fourth Proportional to 190,722,129.75, 286,125,841.13 and 69,553,581.75
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Solution
The fourth proportional to 190,722,129.75, 286,125,841.13 and 69,553,581.75 is: 104,345,925.18
Step by Step Solution
- Step 1: Write the proportion equation
190,722,129.75 : 286,125,841.13 = 69,553,581.75 : x - Step 2: Convert to fraction form
190,722,129.75/286,125,841.13 = 69,553,581.75/x - Step 3: Cross multiply
190,722,129.75x = 286,125,841.13 × 69,553,581.75 - Step 4: Simplify right side
190,722,129.75x = 19,901,077,081,475,200 - Step 5: Solve for x
x = 19,901,077,081,475,200/190,722,129.75 - Step 6: Final answer
x = 104,345,925.18
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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.