Finding the Fourth Proportional to 19,789,272.77, 29,687,638.29 and 7,496,918.05
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Solution
The fourth proportional to 19,789,272.77, 29,687,638.29 and 7,496,918.05 is: 11,246,789.81
Step by Step Solution
- Step 1: Write the proportion equation
19,789,272.77 : 29,687,638.29 = 7,496,918.05 : x - Step 2: Convert to fraction form
19,789,272.77/29,687,638.29 = 7,496,918.05/x - Step 3: Cross multiply
19,789,272.77x = 29,687,638.29 × 7,496,918.05 - Step 4: Simplify right side
19,789,272.77x = 222,565,791,311,503.94 - Step 5: Solve for x
x = 222,565,791,311,503.94/19,789,272.77 - Step 6: Final answer
x = 11,246,789.81
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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.