Finding the Fourth Proportional to 385,891,441.04, 578,895,948.12 and 240,207,147.92
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Solution
The fourth proportional to 385,891,441.04, 578,895,948.12 and 240,207,147.92 is: 360,347,314.95
Step by Step Solution
- Step 1: Write the proportion equation
385,891,441.04 : 578,895,948.12 = 240,207,147.92 : x - Step 2: Convert to fraction form
385,891,441.04/578,895,948.12 = 240,207,147.92/x - Step 3: Cross multiply
385,891,441.04x = 578,895,948.12 × 240,207,147.92 - Step 4: Simplify right side
385,891,441.04x = 139,054,944,640,349,472 - Step 5: Solve for x
x = 139,054,944,640,349,472/385,891,441.04 - Step 6: Final answer
x = 360,347,314.95
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1.5x scale
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.