Finding the Fourth Proportional to 1,207,894,395.56, 1,666,699,812.10 and 679,226,861.48
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Solution
The fourth proportional to 1,207,894,395.56, 1,666,699,812.10 and 679,226,861.48 is: 937,223,723.00
Step by Step Solution
- Step 1: Write the proportion equation
1,207,894,395.56 : 1,666,699,812.10 = 679,226,861.48 : x - Step 2: Convert to fraction form
1,207,894,395.56/1,666,699,812.10 = 679,226,861.48/x - Step 3: Cross multiply
1,207,894,395.56x = 1,666,699,812.10 × 679,226,861.48 - Step 4: Simplify right side
1,207,894,395.56x = 1,132,067,282,401,988,736 - Step 5: Solve for x
x = 1,132,067,282,401,988,736/1,207,894,395.56 - Step 6: Final answer
x = 937,223,723.00
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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.