Finding the Fourth Proportional to 399,526,430.70, 598,439,340.45 and 331,501,982.70
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Solution
The fourth proportional to 399,526,430.70, 598,439,340.45 and 331,501,982.70 is: 496,547,443.78
Step by Step Solution
- Step 1: Write the proportion equation
399,526,430.70 : 598,439,340.45 = 331,501,982.70 : x - Step 2: Convert to fraction form
399,526,430.70/598,439,340.45 = 331,501,982.70/x - Step 3: Cross multiply
399,526,430.70x = 598,439,340.45 × 331,501,982.70 - Step 4: Simplify right side
399,526,430.70x = 198,383,827,884,855,328 - Step 5: Solve for x
x = 198,383,827,884,855,328/399,526,430.70 - Step 6: Final answer
x = 496,547,443.78
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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.