Finding the Fourth Proportional to 81,133,835.09, 121,699,854.14 and 19,723,052.48
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Solution
The fourth proportional to 81,133,835.09, 121,699,854.14 and 19,723,052.48 is: 29,584,360.30
Step by Step Solution
- Step 1: Write the proportion equation
81,133,835.09 : 121,699,854.14 = 19,723,052.48 : x - Step 2: Convert to fraction form
81,133,835.09/121,699,854.14 = 19,723,052.48/x - Step 3: Cross multiply
81,133,835.09x = 121,699,854.14 × 19,723,052.48 - Step 4: Simplify right side
81,133,835.09x = 2,400,292,609,304,451 - Step 5: Solve for x
x = 2,400,292,609,304,451/81,133,835.09 - Step 6: Final answer
x = 29,584,360.30
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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.