Finding the Fourth Proportional to 4,261,372,854.40, 6,390,925,540.80 and 1,313,646,774.40
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Solution
The fourth proportional to 4,261,372,854.40, 6,390,925,540.80 and 1,313,646,774.40 is: 1,970,120,665.09
Step by Step Solution
- Step 1: Write the proportion equation
4,261,372,854.40 : 6,390,925,540.80 = 1,313,646,774.40 : x - Step 2: Convert to fraction form
4,261,372,854.40/6,390,925,540.80 = 1,313,646,774.40/x - Step 3: Cross multiply
4,261,372,854.40x = 6,390,925,540.80 × 1,313,646,774.40 - Step 4: Simplify right side
4,261,372,854.40x = 8,395,418,722,102,496,256 - Step 5: Solve for x
x = 8,395,418,722,102,496,256/4,261,372,854.40 - Step 6: Final answer
x = 1,970,120,665.09
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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.