Finding the Fourth Proportional to 372,577,728.21, 514,160,665.21 and 205,319,990.63
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Solution
The fourth proportional to 372,577,728.21, 514,160,665.21 and 205,319,990.63 is: 283,343,460.89
Step by Step Solution
- Step 1: Write the proportion equation
372,577,728.21 : 514,160,665.21 = 205,319,990.63 : x - Step 2: Convert to fraction form
372,577,728.21/514,160,665.21 = 205,319,990.63/x - Step 3: Cross multiply
372,577,728.21x = 514,160,665.21 × 205,319,990.63 - Step 4: Simplify right side
372,577,728.21x = 105,567,462,960,147,664 - Step 5: Solve for x
x = 105,567,462,960,147,664/372,577,728.21 - Step 6: Final answer
x = 283,343,460.89
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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.