Finding the Fourth Proportional to 38,903,759.19, 53,687,354.45 and 21,263,017.05
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Solution
The fourth proportional to 38,903,759.19, 53,687,354.45 and 21,263,017.05 is: 29,343,054.67
Step by Step Solution
- Step 1: Write the proportion equation
38,903,759.19 : 53,687,354.45 = 21,263,017.05 : x - Step 2: Convert to fraction form
38,903,759.19/53,687,354.45 = 21,263,017.05/x - Step 3: Cross multiply
38,903,759.19x = 53,687,354.45 × 21,263,017.05 - Step 4: Simplify right side
38,903,759.19x = 1,141,555,132,933,428.25 - Step 5: Solve for x
x = 1,141,555,132,933,428.25/38,903,759.19 - Step 6: Final answer
x = 29,343,054.67
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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.