Finding the Fourth Proportional to 644,697,035.16, 889,673,398.14 and 358,586,631.96
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Solution
The fourth proportional to 644,697,035.16, 889,673,398.14 and 358,586,631.96 is: 494,844,818.55
Step by Step Solution
- Step 1: Write the proportion equation
644,697,035.16 : 889,673,398.14 = 358,586,631.96 : x - Step 2: Convert to fraction form
644,697,035.16/889,673,398.14 = 358,586,631.96/x - Step 3: Cross multiply
644,697,035.16x = 889,673,398.14 × 358,586,631.96 - Step 4: Simplify right side
644,697,035.16x = 319,024,987,383,430,720 - Step 5: Solve for x
x = 319,024,987,383,430,720/644,697,035.16 - Step 6: Final answer
x = 494,844,818.55
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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.