Finding the Fourth Proportional to 388,753,805, 536,491,448.34 and 214,924,746.44
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Solution
The fourth proportional to 388,753,805, 536,491,448.34 and 214,924,746.44 is: 296,602,340.66
Step by Step Solution
- Step 1: Write the proportion equation
388,753,805 : 536,491,448.34 = 214,924,746.44 : x - Step 2: Convert to fraction form
388,753,805/536,491,448.34 = 214,924,746.44/x - Step 3: Cross multiply
388,753,805x = 536,491,448.34 × 214,924,746.44 - Step 4: Simplify right side
388,753,805x = 115,305,288,501,702,848 - Step 5: Solve for x
x = 115,305,288,501,702,848/388,753,805 - Step 6: Final answer
x = 296,602,340.66
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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.