Finding the Fourth Proportional to 395,283,281.60, 545,490,980.33 and 219,082,652.79
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Solution
The fourth proportional to 395,283,281.60, 545,490,980.33 and 219,082,652.79 is: 302,334,089.52
Step by Step Solution
- Step 1: Write the proportion equation
395,283,281.60 : 545,490,980.33 = 219,082,652.79 : x - Step 2: Convert to fraction form
395,283,281.60/545,490,980.33 = 219,082,652.79/x - Step 3: Cross multiply
395,283,281.60x = 545,490,980.33 × 219,082,652.79 - Step 4: Simplify right side
395,283,281.60x = 119,507,611,042,618,704 - Step 5: Solve for x
x = 119,507,611,042,618,704/395,283,281.60 - Step 6: Final answer
x = 302,334,089.52
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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.