Finding the Fourth Proportional to 39,106,854.48, 58,660,281.83 and 20,855,755.68
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Solution
The fourth proportional to 39,106,854.48, 58,660,281.83 and 20,855,755.68 is: 31,283,633.57
Step by Step Solution
- Step 1: Write the proportion equation
39,106,854.48 : 58,660,281.83 = 20,855,755.68 : x - Step 2: Convert to fraction form
39,106,854.48/58,660,281.83 = 20,855,755.68/x - Step 3: Cross multiply
39,106,854.48x = 58,660,281.83 × 20,855,755.68 - Step 4: Simplify right side
39,106,854.48x = 1,223,404,505,798,586.75 - Step 5: Solve for x
x = 1,223,404,505,798,586.75/39,106,854.48 - Step 6: Final answer
x = 31,283,633.57
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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.