Finding the Fourth Proportional to 38,842,107.40, 53,598,291.98 and 21,437,331.63
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Solution
The fourth proportional to 38,842,107.40, 53,598,291.98 and 21,437,331.63 is: 29,581,411.43
Step by Step Solution
- Step 1: Write the proportion equation
38,842,107.40 : 53,598,291.98 = 21,437,331.63 : x - Step 2: Convert to fraction form
38,842,107.40/53,598,291.98 = 21,437,331.63/x - Step 3: Cross multiply
38,842,107.40x = 53,598,291.98 × 21,437,331.63 - Step 4: Simplify right side
38,842,107.40x = 1,149,004,359,976,829.25 - Step 5: Solve for x
x = 1,149,004,359,976,829.25/38,842,107.40 - Step 6: Final answer
x = 29,581,411.43
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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.