Finding the Fourth Proportional to 383,710,378.20, 575,565,567.30 and 268,824,643.80
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Solution
The fourth proportional to 383,710,378.20, 575,565,567.30 and 268,824,643.80 is: 403,236,965.70
Step by Step Solution
- Step 1: Write the proportion equation
383,710,378.20 : 575,565,567.30 = 268,824,643.80 : x - Step 2: Convert to fraction form
383,710,378.20/575,565,567.30 = 268,824,643.80/x - Step 3: Cross multiply
383,710,378.20x = 575,565,567.30 × 268,824,643.80 - Step 4: Simplify right side
383,710,378.20x = 154,726,208,612,967,424 - Step 5: Solve for x
x = 154,726,208,612,967,424/383,710,378.20 - Step 6: Final answer
x = 403,236,965.70
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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.