Finding the Fourth Proportional to 74,157,415.20, 111,236,122.80 and 19,569,895.20
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Solution
The fourth proportional to 74,157,415.20, 111,236,122.80 and 19,569,895.20 is: 29,354,842.80
Step by Step Solution
- Step 1: Write the proportion equation
74,157,415.20 : 111,236,122.80 = 19,569,895.20 : x - Step 2: Convert to fraction form
74,157,415.20/111,236,122.80 = 19,569,895.20/x - Step 3: Cross multiply
74,157,415.20x = 111,236,122.80 × 19,569,895.20 - Step 4: Simplify right side
74,157,415.20x = 2,176,879,265,650,330.50 - Step 5: Solve for x
x = 2,176,879,265,650,330.50/74,157,415.20 - Step 6: Final answer
x = 29,354,842.80
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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.