Finding the Fourth Proportional to 387,252,970.84, 534,409,110.66 and 213,412,714.84
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Solution
The fourth proportional to 387,252,970.84, 534,409,110.66 and 213,412,714.84 is: 294,509,552.49
Step by Step Solution
- Step 1: Write the proportion equation
387,252,970.84 : 534,409,110.66 = 213,412,714.84 : x - Step 2: Convert to fraction form
387,252,970.84/534,409,110.66 = 213,412,714.84/x - Step 3: Cross multiply
387,252,970.84x = 534,409,110.66 × 213,412,714.84 - Step 4: Simplify right side
387,252,970.84x = 114,049,699,141,180,592 - Step 5: Solve for x
x = 114,049,699,141,180,592/387,252,970.84 - Step 6: Final answer
x = 294,509,552.49
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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.