Finding the Fourth Proportional to 649,034,631.20, 895,670,909.88 and 351,676,794.80
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Solution
The fourth proportional to 649,034,631.20, 895,670,909.88 and 351,676,794.80 is: 485,315,666.75
Step by Step Solution
- Step 1: Write the proportion equation
649,034,631.20 : 895,670,909.88 = 351,676,794.80 : x - Step 2: Convert to fraction form
649,034,631.20/895,670,909.88 = 351,676,794.80/x - Step 3: Cross multiply
649,034,631.20x = 895,670,909.88 × 351,676,794.80 - Step 4: Simplify right side
649,034,631.20x = 314,986,674,782,198,080 - Step 5: Solve for x
x = 314,986,674,782,198,080/649,034,631.20 - Step 6: Final answer
x = 485,315,666.75
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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.