Finding the Fourth Proportional to 77,405,697.36, 106,819,830.96 and 42,598,387.68
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Solution
The fourth proportional to 77,405,697.36, 106,819,830.96 and 42,598,387.68 is: 58,785,757.72
Step by Step Solution
- Step 1: Write the proportion equation
77,405,697.36 : 106,819,830.96 = 42,598,387.68 : x - Step 2: Convert to fraction form
77,405,697.36/106,819,830.96 = 42,598,387.68/x - Step 3: Cross multiply
77,405,697.36x = 106,819,830.96 × 42,598,387.68 - Step 4: Simplify right side
77,405,697.36x = 4,550,352,571,146,146 - Step 5: Solve for x
x = 4,550,352,571,146,146/77,405,697.36 - Step 6: Final answer
x = 58,785,757.72
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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.