Finding the Fourth Proportional to 418,970,801.68, 578,197,645 and 233,331,817.20
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Solution
The fourth proportional to 418,970,801.68, 578,197,645 and 233,331,817.20 is: 322,007,898.09
Step by Step Solution
- Step 1: Write the proportion equation
418,970,801.68 : 578,197,645 = 233,331,817.20 : x - Step 2: Convert to fraction form
418,970,801.68/578,197,645 = 233,331,817.20/x - Step 3: Cross multiply
418,970,801.68x = 578,197,645 × 233,331,817.20 - Step 4: Simplify right side
418,970,801.68x = 134,911,907,208,610,480 - Step 5: Solve for x
x = 134,911,907,208,610,480/418,970,801.68 - Step 6: Final answer
x = 322,007,898.09
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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.