Finding the Fourth Proportional to 105,789,201.12, 145,981,085.60 and 59,370,490.08
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Solution
The fourth proportional to 105,789,201.12, 145,981,085.60 and 59,370,490.08 is: 81,926,779.89
Step by Step Solution
- Step 1: Write the proportion equation
105,789,201.12 : 145,981,085.60 = 59,370,490.08 : x - Step 2: Convert to fraction form
105,789,201.12/145,981,085.60 = 59,370,490.08/x - Step 3: Cross multiply
105,789,201.12x = 145,981,085.60 × 59,370,490.08 - Step 4: Simplify right side
105,789,201.12x = 8,666,968,594,482,430 - Step 5: Solve for x
x = 8,666,968,594,482,430/105,789,201.12 - Step 6: Final answer
x = 81,926,779.89
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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.