Finding the Fourth Proportional to 77,392,380.63, 106,798,283.21 and 42,110,330.96
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Solution
The fourth proportional to 77,392,380.63, 106,798,283.21 and 42,110,330.96 is: 58,110,514.43
Step by Step Solution
- Step 1: Write the proportion equation
77,392,380.63 : 106,798,283.21 = 42,110,330.96 : x - Step 2: Convert to fraction form
77,392,380.63/106,798,283.21 = 42,110,330.96/x - Step 3: Cross multiply
77,392,380.63x = 106,798,283.21 × 42,110,330.96 - Step 4: Simplify right side
77,392,380.63x = 4,497,311,051,188,368 - Step 5: Solve for x
x = 4,497,311,051,188,368/77,392,380.63 - Step 6: Final answer
x = 58,110,514.43
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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.