Finding the Fourth Proportional to 90,165,720.68, 124,428,934.34 and 48,912,613.08
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Solution
The fourth proportional to 90,165,720.68, 124,428,934.34 and 48,912,613.08 is: 67,499,536.14
Step by Step Solution
- Step 1: Write the proportion equation
90,165,720.68 : 124,428,934.34 = 48,912,613.08 : x - Step 2: Convert to fraction form
90,165,720.68/124,428,934.34 = 48,912,613.08/x - Step 3: Cross multiply
90,165,720.68x = 124,428,934.34 × 48,912,613.08 - Step 4: Simplify right side
90,165,720.68x = 6,086,144,321,329,145 - Step 5: Solve for x
x = 6,086,144,321,329,145/90,165,720.68 - Step 6: Final answer
x = 67,499,536.14
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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.