Finding the Fourth Proportional to 21,319,346.24, 31,979,024.82 and 5,968,897.42
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Solution
The fourth proportional to 21,319,346.24, 31,979,024.82 and 5,968,897.42 is: 8,953,347.66
Step by Step Solution
- Step 1: Write the proportion equation
21,319,346.24 : 31,979,024.82 = 5,968,897.42 : x - Step 2: Convert to fraction form
21,319,346.24/31,979,024.82 = 5,968,897.42/x - Step 3: Cross multiply
21,319,346.24x = 31,979,024.82 × 5,968,897.42 - Step 4: Simplify right side
21,319,346.24x = 190,879,518,742,213.97 - Step 5: Solve for x
x = 190,879,518,742,213.97/21,319,346.24 - Step 6: Final answer
x = 8,953,347.66
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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.