Finding the Fourth Proportional to 31,979,019.36, 47,968,537.23 and 8,953,346.13
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Solution
The fourth proportional to 31,979,019.36, 47,968,537.23 and 8,953,346.13 is: 13,430,021.49
Step by Step Solution
- Step 1: Write the proportion equation
31,979,019.36 : 47,968,537.23 = 8,953,346.13 : x - Step 2: Convert to fraction form
31,979,019.36/47,968,537.23 = 8,953,346.13/x - Step 3: Cross multiply
31,979,019.36x = 47,968,537.23 × 8,953,346.13 - Step 4: Simplify right side
31,979,019.36x = 429,478,917,169,981.44 - Step 5: Solve for x
x = 429,478,917,169,981.44/31,979,019.36 - Step 6: Final answer
x = 13,430,021.49
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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.