Finding the Fourth Proportional to 402,487,486.84, 555,429,393.30 and 226,276,267.96
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Solution
The fourth proportional to 402,487,486.84, 555,429,393.30 and 226,276,267.96 is: 312,259,372.88
Step by Step Solution
- Step 1: Write the proportion equation
402,487,486.84 : 555,429,393.30 = 226,276,267.96 : x - Step 2: Convert to fraction form
402,487,486.84/555,429,393.30 = 226,276,267.96/x - Step 3: Cross multiply
402,487,486.84x = 555,429,393.30 × 226,276,267.96 - Step 4: Simplify right side
402,487,486.84x = 125,680,490,231,211,024 - Step 5: Solve for x
x = 125,680,490,231,211,024/402,487,486.84 - Step 6: Final answer
x = 312,259,372.88
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.