Finding the Fourth Proportional to 80,854,583.70, 121,281,875.55 and 48,489,826.80
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Solution
The fourth proportional to 80,854,583.70, 121,281,875.55 and 48,489,826.80 is: 72,734,740.20
Step by Step Solution
- Step 1: Write the proportion equation
80,854,583.70 : 121,281,875.55 = 48,489,826.80 : x - Step 2: Convert to fraction form
80,854,583.70/121,281,875.55 = 48,489,826.80/x - Step 3: Cross multiply
80,854,583.70x = 121,281,875.55 × 48,489,826.80 - Step 4: Simplify right side
80,854,583.70x = 5,880,937,139,398,654 - Step 5: Solve for x
x = 5,880,937,139,398,654/80,854,583.70 - Step 6: Final answer
x = 72,734,740.20
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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.