Finding the Fourth Proportional to 3,936,409,904.38, 5,432,246,128.63 and 2,152,264,565.99
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Solution
The fourth proportional to 3,936,409,904.38, 5,432,246,128.63 and 2,152,264,565.99 is: 2,970,125,352.90
Step by Step Solution
- Step 1: Write the proportion equation
3,936,409,904.38 : 5,432,246,128.63 = 2,152,264,565.99 : x - Step 2: Convert to fraction form
3,936,409,904.38/5,432,246,128.63 = 2,152,264,565.99/x - Step 3: Cross multiply
3,936,409,904.38x = 5,432,246,128.63 × 2,152,264,565.99 - Step 4: Simplify right side
3,936,409,904.38x = 11,691,630,856,386,703,360 - Step 5: Solve for x
x = 11,691,630,856,386,703,360/3,936,409,904.38 - Step 6: Final answer
x = 2,970,125,352.90
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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.