Finding the Fourth Proportional to 490,762,472.80, 735,518,518.80 and 260,841,704.80
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Solution
The fourth proportional to 490,762,472.80, 735,518,518.80 and 260,841,704.80 is: 390,930,266.65
Step by Step Solution
- Step 1: Write the proportion equation
490,762,472.80 : 735,518,518.80 = 260,841,704.80 : x - Step 2: Convert to fraction form
490,762,472.80/735,518,518.80 = 260,841,704.80/x - Step 3: Cross multiply
490,762,472.80x = 735,518,518.80 × 260,841,704.80 - Step 4: Simplify right side
490,762,472.80x = 191,853,904,355,762,848 - Step 5: Solve for x
x = 191,853,904,355,762,848/490,762,472.80 - Step 6: Final answer
x = 390,930,266.65
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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.