Finding the Fourth Proportional to 74,887,621.40, 112,331,432.10 and 62,122,539.80
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Solution
The fourth proportional to 74,887,621.40, 112,331,432.10 and 62,122,539.80 is: 93,183,809.70
Step by Step Solution
- Step 1: Write the proportion equation
74,887,621.40 : 112,331,432.10 = 62,122,539.80 : x - Step 2: Convert to fraction form
74,887,621.40/112,331,432.10 = 62,122,539.80/x - Step 3: Cross multiply
74,887,621.40x = 112,331,432.10 × 62,122,539.80 - Step 4: Simplify right side
74,887,621.40x = 6,978,313,861,423,247 - Step 5: Solve for x
x = 6,978,313,861,423,247/74,887,621.40 - Step 6: Final answer
x = 93,183,809.70
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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.