Finding the Fourth Proportional to 38,246,738.98, 52,779,159.20 and 20,842,729.06
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Solution
The fourth proportional to 38,246,738.98, 52,779,159.20 and 20,842,729.06 is: 28,762,235.54
Step by Step Solution
- Step 1: Write the proportion equation
38,246,738.98 : 52,779,159.20 = 20,842,729.06 : x - Step 2: Convert to fraction form
38,246,738.98/52,779,159.20 = 20,842,729.06/x - Step 3: Cross multiply
38,246,738.98x = 52,779,159.20 × 20,842,729.06 - Step 4: Simplify right side
38,246,738.98x = 1,100,061,715,220,206.38 - Step 5: Solve for x
x = 1,100,061,715,220,206.38/38,246,738.98 - Step 6: Final answer
x = 28,762,235.54
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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.