Finding the Fourth Proportional to 611,914,655.13, 844,401,822.09 and 344,031,780.75
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Solution
The fourth proportional to 611,914,655.13, 844,401,822.09 and 344,031,780.75 is: 474,741,142.55
Step by Step Solution
- Step 1: Write the proportion equation
611,914,655.13 : 844,401,822.09 = 344,031,780.75 : x - Step 2: Convert to fraction form
611,914,655.13/844,401,822.09 = 344,031,780.75/x - Step 3: Cross multiply
611,914,655.13x = 844,401,822.09 × 344,031,780.75 - Step 4: Simplify right side
611,914,655.13x = 290,501,062,522,167,424 - Step 5: Solve for x
x = 290,501,062,522,167,424/611,914,655.13 - Step 6: Final answer
x = 474,741,142.55
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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.