Finding the Fourth Proportional to 2,486,171,120.64, 3,430,915,628.80 and 1,372,336,924.16
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Solution
The fourth proportional to 2,486,171,120.64, 3,430,915,628.80 and 1,372,336,924.16 is: 1,893,824,669.59
Step by Step Solution
- Step 1: Write the proportion equation
2,486,171,120.64 : 3,430,915,628.80 = 1,372,336,924.16 : x - Step 2: Convert to fraction form
2,486,171,120.64/3,430,915,628.80 = 1,372,336,924.16/x - Step 3: Cross multiply
2,486,171,120.64x = 3,430,915,628.80 × 1,372,336,924.16 - Step 4: Simplify right side
2,486,171,120.64x = 4,708,372,201,079,865,344 - Step 5: Solve for x
x = 4,708,372,201,079,865,344/2,486,171,120.64 - Step 6: Final answer
x = 1,893,824,669.59
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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.