Finding the Fourth Proportional to 512,185,938.44, 706,521,567.69 and 308,359,405.09
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Solution
The fourth proportional to 512,185,938.44, 706,521,567.69 and 308,359,405.09 is: 425,358,359.03
Step by Step Solution
- Step 1: Write the proportion equation
512,185,938.44 : 706,521,567.69 = 308,359,405.09 : x - Step 2: Convert to fraction form
512,185,938.44/706,521,567.69 = 308,359,405.09/x - Step 3: Cross multiply
512,185,938.44x = 706,521,567.69 × 308,359,405.09 - Step 4: Simplify right side
512,185,938.44x = 217,862,570,293,048,000 - Step 5: Solve for x
x = 217,862,570,293,048,000/512,185,938.44 - Step 6: Final answer
x = 425,358,359.03
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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.