Finding the Fourth Proportional to 409,580,217.36, 565,220,747.88 and 223,941,358.80
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Solution
The fourth proportional to 409,580,217.36, 565,220,747.88 and 223,941,358.80 is: 309,039,101.35
Step by Step Solution
- Step 1: Write the proportion equation
409,580,217.36 : 565,220,747.88 = 223,941,358.80 : x - Step 2: Convert to fraction form
409,580,217.36/565,220,747.88 = 223,941,358.80/x - Step 3: Cross multiply
409,580,217.36x = 565,220,747.88 × 223,941,358.80 - Step 4: Simplify right side
409,580,217.36x = 126,576,302,302,199,424 - Step 5: Solve for x
x = 126,576,302,302,199,424/409,580,217.36 - Step 6: Final answer
x = 309,039,101.35
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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.