Finding the Fourth Proportional to 21,634,659.54, 29,854,647.36 and 11,843,209.53
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Solution
The fourth proportional to 21,634,659.54, 29,854,647.36 and 11,843,209.53 is: 16,342,981.66
Step by Step Solution
- Step 1: Write the proportion equation
21,634,659.54 : 29,854,647.36 = 11,843,209.53 : x - Step 2: Convert to fraction form
21,634,659.54/29,854,647.36 = 11,843,209.53/x - Step 3: Cross multiply
21,634,659.54x = 29,854,647.36 × 11,843,209.53 - Step 4: Simplify right side
21,634,659.54x = 353,574,844,128,741.31 - Step 5: Solve for x
x = 353,574,844,128,741.31/21,634,659.54 - Step 6: Final answer
x = 16,342,981.66
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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.