Finding the Fourth Proportional to 212,276,821.36, 318,417,015.12 and 58,934,835.76
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Solution
The fourth proportional to 212,276,821.36, 318,417,015.12 and 58,934,835.76 is: 88,402,748.68
Step by Step Solution
- Step 1: Write the proportion equation
212,276,821.36 : 318,417,015.12 = 58,934,835.76 : x - Step 2: Convert to fraction form
212,276,821.36/318,417,015.12 = 58,934,835.76/x - Step 3: Cross multiply
212,276,821.36x = 318,417,015.12 × 58,934,835.76 - Step 4: Simplify right side
212,276,821.36x = 18,765,854,489,286,636 - Step 5: Solve for x
x = 18,765,854,489,286,636/212,276,821.36 - Step 6: Final answer
x = 88,402,748.68
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1.5x scale
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.