Finding the Fourth Proportional to 89,488,911.74, 123,490,616.36 and 49,798,404.68
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Solution
The fourth proportional to 89,488,911.74, 123,490,616.36 and 49,798,404.68 is: 68,719,527.01
Step by Step Solution
- Step 1: Write the proportion equation
89,488,911.74 : 123,490,616.36 = 49,798,404.68 : x - Step 2: Convert to fraction form
89,488,911.74/123,490,616.36 = 49,798,404.68/x - Step 3: Cross multiply
89,488,911.74x = 123,490,616.36 × 49,798,404.68 - Step 4: Simplify right side
89,488,911.74x = 6,149,635,686,811,463 - Step 5: Solve for x
x = 6,149,635,686,811,463/89,488,911.74 - Step 6: Final answer
x = 68,719,527.01
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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.