Finding the Fourth Proportional to 3,936,409,903.38, 5,432,246,127.25 and 2,152,264,564.99
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Solution
The fourth proportional to 3,936,409,903.38, 5,432,246,127.25 and 2,152,264,564.99 is: 2,970,125,351.52
Step by Step Solution
- Step 1: Write the proportion equation
3,936,409,903.38 : 5,432,246,127.25 = 2,152,264,564.99 : x - Step 2: Convert to fraction form
3,936,409,903.38/5,432,246,127.25 = 2,152,264,564.99/x - Step 3: Cross multiply
3,936,409,903.38x = 5,432,246,127.25 × 2,152,264,564.99 - Step 4: Simplify right side
3,936,409,903.38x = 11,691,630,847,973,570,560 - Step 5: Solve for x
x = 11,691,630,847,973,570,560/3,936,409,903.38 - Step 6: Final answer
x = 2,970,125,351.52
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1.5x scale
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.