Finding the Fourth Proportional to 384,779,700.03, 530,981,760.41 and 208,563,911.99
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Solution
The fourth proportional to 384,779,700.03, 530,981,760.41 and 208,563,911.99 is: 287,810,487.76
Step by Step Solution
- Step 1: Write the proportion equation
384,779,700.03 : 530,981,760.41 = 208,563,911.99 : x - Step 2: Convert to fraction form
384,779,700.03/530,981,760.41 = 208,563,911.99/x - Step 3: Cross multiply
384,779,700.03x = 530,981,760.41 × 208,563,911.99 - Step 4: Simplify right side
384,779,700.03x = 110,743,633,145,525,296 - Step 5: Solve for x
x = 110,743,633,145,525,296/384,779,700.03 - Step 6: Final answer
x = 287,810,487.76
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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.