Finding the Fourth Proportional to 83,592,415.20, 125,388,622.80 and 74,664,206.40
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Solution
The fourth proportional to 83,592,415.20, 125,388,622.80 and 74,664,206.40 is: 111,996,309.60
Step by Step Solution
- Step 1: Write the proportion equation
83,592,415.20 : 125,388,622.80 = 74,664,206.40 : x - Step 2: Convert to fraction form
83,592,415.20/125,388,622.80 = 74,664,206.40/x - Step 3: Cross multiply
83,592,415.20x = 125,388,622.80 × 74,664,206.40 - Step 4: Simplify right side
83,592,415.20x = 9,362,042,012,950,946 - Step 5: Solve for x
x = 9,362,042,012,950,946/83,592,415.20 - Step 6: Final answer
x = 111,996,309.60
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.