Finding the Fourth Proportional to 4,751,725,173.12, 7,127,860,141.44 and 1,258,039,863.12
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Solution
The fourth proportional to 4,751,725,173.12, 7,127,860,141.44 and 1,258,039,863.12 is: 1,887,131,908.93
Step by Step Solution
- Step 1: Write the proportion equation
4,751,725,173.12 : 7,127,860,141.44 = 1,258,039,863.12 : x - Step 2: Convert to fraction form
4,751,725,173.12/7,127,860,141.44 = 1,258,039,863.12/x - Step 3: Cross multiply
4,751,725,173.12x = 7,127,860,141.44 × 1,258,039,863.12 - Step 4: Simplify right side
4,751,725,173.12x = 8,967,132,196,675,680,256 - Step 5: Solve for x
x = 8,967,132,196,675,680,256/4,751,725,173.12 - Step 6: Final answer
x = 1,887,131,908.93
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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.