Finding the Fourth Proportional to 202,740,067.20, 304,121,807.28 and 78,243,342.00
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Solution
The fourth proportional to 202,740,067.20, 304,121,807.28 and 78,243,342.00 is: 117,369,530.87
Step by Step Solution
- Step 1: Write the proportion equation
202,740,067.20 : 304,121,807.28 = 78,243,342.00 : x - Step 2: Convert to fraction form
202,740,067.20/304,121,807.28 = 78,243,342.00/x - Step 3: Cross multiply
202,740,067.20x = 304,121,807.28 × 78,243,342.00 - Step 4: Simplify right side
202,740,067.20x = 23,795,506,575,526,672 - Step 5: Solve for x
x = 23,795,506,575,526,672/202,740,067.20 - Step 6: Final answer
x = 117,369,530.87
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1.5x scale
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.