Finding the Fourth Proportional to 77,530,246.80, 106,992,458.28 and 42,724,182.84
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Solution
The fourth proportional to 77,530,246.80, 106,992,458.28 and 42,724,182.84 is: 58,959,767.82
Step by Step Solution
- Step 1: Write the proportion equation
77,530,246.80 : 106,992,458.28 = 42,724,182.84 : x - Step 2: Convert to fraction form
77,530,246.80/106,992,458.28 = 42,724,182.84/x - Step 3: Cross multiply
77,530,246.80x = 106,992,458.28 × 42,724,182.84 - Step 4: Simplify right side
77,530,246.80x = 4,571,165,350,055,792 - Step 5: Solve for x
x = 4,571,165,350,055,792/77,530,246.80 - Step 6: Final answer
x = 58,959,767.82
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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.