Finding the Fourth Proportional to 105,514,138.21, 145,617,588.63 and 66,389,451.79
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Solution
The fourth proportional to 105,514,138.21, 145,617,588.63 and 66,389,451.79 is: 91,622,526.08
Step by Step Solution
- Step 1: Write the proportion equation
105,514,138.21 : 145,617,588.63 = 66,389,451.79 : x - Step 2: Convert to fraction form
105,514,138.21/145,617,588.63 = 66,389,451.79/x - Step 3: Cross multiply
105,514,138.21x = 145,617,588.63 × 66,389,451.79 - Step 4: Simplify right side
105,514,138.21x = 9,667,471,879,067,402 - Step 5: Solve for x
x = 9,667,471,879,067,402/105,514,138.21 - Step 6: Final answer
x = 91,622,526.08
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.