Finding the Fourth Proportional to 34,248,980.34, 47,270,459.16 and 20,318,067.99
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Solution
The fourth proportional to 34,248,980.34, 47,270,459.16 and 20,318,067.99 is: 28,043,007.23
Step by Step Solution
- Step 1: Write the proportion equation
34,248,980.34 : 47,270,459.16 = 20,318,067.99 : x - Step 2: Convert to fraction form
34,248,980.34/47,270,459.16 = 20,318,067.99/x - Step 3: Cross multiply
34,248,980.34x = 47,270,459.16 × 20,318,067.99 - Step 4: Simplify right side
34,248,980.34x = 960,444,403,131,398.12 - Step 5: Solve for x
x = 960,444,403,131,398.12/34,248,980.34 - Step 6: Final answer
x = 28,043,007.23
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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.