Finding the Fourth Proportional to 112,493,284.70, 168,739,927.05 and 78,453,067.10
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Solution
The fourth proportional to 112,493,284.70, 168,739,927.05 and 78,453,067.10 is: 117,679,600.65
Step by Step Solution
- Step 1: Write the proportion equation
112,493,284.70 : 168,739,927.05 = 78,453,067.10 : x - Step 2: Convert to fraction form
112,493,284.70/168,739,927.05 = 78,453,067.10/x - Step 3: Cross multiply
112,493,284.70x = 168,739,927.05 × 78,453,067.10 - Step 4: Simplify right side
112,493,284.70x = 13,238,164,819,302,754 - Step 5: Solve for x
x = 13,238,164,819,302,754/112,493,284.70 - Step 6: Final answer
x = 117,679,600.65
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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.