Finding the Fourth Proportional to 265,724,539.20, 398,586,808.80 and 74,248,315.20
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Solution
The fourth proportional to 265,724,539.20, 398,586,808.80 and 74,248,315.20 is: 111,372,472.80
Step by Step Solution
- Step 1: Write the proportion equation
265,724,539.20 : 398,586,808.80 = 74,248,315.20 : x - Step 2: Convert to fraction form
265,724,539.20/398,586,808.80 = 74,248,315.20/x - Step 3: Cross multiply
265,724,539.20x = 398,586,808.80 × 74,248,315.20 - Step 4: Simplify right side
265,724,539.20x = 29,594,399,014,344,536 - Step 5: Solve for x
x = 29,594,399,014,344,536/265,724,539.20 - Step 6: Final answer
x = 111,372,472.80
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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.