Finding the Fourth Proportional to 706,266,421.61, 1,058,431,080.92 and 447,018,872.99
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Solution
The fourth proportional to 706,266,421.61, 1,058,431,080.92 and 447,018,872.99 is: 669,915,281.90
Step by Step Solution
- Step 1: Write the proportion equation
706,266,421.61 : 1,058,431,080.92 = 447,018,872.99 : x - Step 2: Convert to fraction form
706,266,421.61/1,058,431,080.92 = 447,018,872.99/x - Step 3: Cross multiply
706,266,421.61x = 1,058,431,080.92 × 447,018,872.99 - Step 4: Simplify right side
706,266,421.61x = 473,138,668,922,918,656 - Step 5: Solve for x
x = 473,138,668,922,918,656/706,266,421.61 - Step 6: Final answer
x = 669,915,281.90
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.