Finding the Fourth Proportional to 190,115,921.80, 285,173,882.70 and 46,508,753.80
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Solution
The fourth proportional to 190,115,921.80, 285,173,882.70 and 46,508,753.80 is: 69,763,130.70
Step by Step Solution
- Step 1: Write the proportion equation
190,115,921.80 : 285,173,882.70 = 46,508,753.80 : x - Step 2: Convert to fraction form
190,115,921.80/285,173,882.70 = 46,508,753.80/x - Step 3: Cross multiply
190,115,921.80x = 285,173,882.70 × 46,508,753.80 - Step 4: Simplify right side
190,115,921.80x = 13,263,081,900,684,378 - Step 5: Solve for x
x = 13,263,081,900,684,378/190,115,921.80 - Step 6: Final answer
x = 69,763,130.70
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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.