Finding the Fourth Proportional to 113,979,959.74, 157,292,478.91 and 61,768,995.26
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Solution
The fourth proportional to 113,979,959.74, 157,292,478.91 and 61,768,995.26 is: 85,241,286.34
Step by Step Solution
- Step 1: Write the proportion equation
113,979,959.74 : 157,292,478.91 = 61,768,995.26 : x - Step 2: Convert to fraction form
113,979,959.74/157,292,478.91 = 61,768,995.26/x - Step 3: Cross multiply
113,979,959.74x = 157,292,478.91 × 61,768,995.26 - Step 4: Simplify right side
113,979,959.74x = 9,715,798,384,695,882 - Step 5: Solve for x
x = 9,715,798,384,695,882/113,979,959.74 - Step 6: Final answer
x = 85,241,286.34
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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.