Finding the Fourth Proportional to 2,811,895,979.20, 4,217,843,968.80 and 2,356,132,177.60
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Solution
The fourth proportional to 2,811,895,979.20, 4,217,843,968.80 and 2,356,132,177.60 is: 3,534,198,266.40
Step by Step Solution
- Step 1: Write the proportion equation
2,811,895,979.20 : 4,217,843,968.80 = 2,356,132,177.60 : x - Step 2: Convert to fraction form
2,811,895,979.20/4,217,843,968.80 = 2,356,132,177.60/x - Step 3: Cross multiply
2,811,895,979.20x = 4,217,843,968.80 × 2,356,132,177.60 - Step 4: Simplify right side
2,811,895,979.20x = 9,937,797,894,985,771,008 - Step 5: Solve for x
x = 9,937,797,894,985,771,008/2,811,895,979.20 - Step 6: Final answer
x = 3,534,198,266.40
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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.