Finding the Fourth Proportional to 85,031,794.74, 117,336,391.20 and 47,352,112.07
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Solution
The fourth proportional to 85,031,794.74, 117,336,391.20 and 47,352,112.07 is: 65,341,746.14
Step by Step Solution
- Step 1: Write the proportion equation
85,031,794.74 : 117,336,391.20 = 47,352,112.07 : x - Step 2: Convert to fraction form
85,031,794.74/117,336,391.20 = 47,352,112.07/x - Step 3: Cross multiply
85,031,794.74x = 117,336,391.20 × 47,352,112.07 - Step 4: Simplify right side
85,031,794.74x = 5,556,125,945,405,080 - Step 5: Solve for x
x = 5,556,125,945,405,080/85,031,794.74 - Step 6: Final answer
x = 65,341,746.14
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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.