Finding the Fourth Proportional to 302,207,710.20, 453,311,565.30 and 278,021,239.80
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Solution
The fourth proportional to 302,207,710.20, 453,311,565.30 and 278,021,239.80 is: 417,031,859.70
Step by Step Solution
- Step 1: Write the proportion equation
302,207,710.20 : 453,311,565.30 = 278,021,239.80 : x - Step 2: Convert to fraction form
302,207,710.20/453,311,565.30 = 278,021,239.80/x - Step 3: Cross multiply
302,207,710.20x = 453,311,565.30 × 278,021,239.80 - Step 4: Simplify right side
302,207,710.20x = 126,030,243,400,384,672 - Step 5: Solve for x
x = 126,030,243,400,384,672/302,207,710.20 - Step 6: Final answer
x = 417,031,859.70
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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.