Finding the Fourth Proportional to 30,663,631.76, 42,316,310.70 and 16,724,983.28
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Solution
The fourth proportional to 30,663,631.76, 42,316,310.70 and 16,724,983.28 is: 23,080,749.02
Step by Step Solution
- Step 1: Write the proportion equation
30,663,631.76 : 42,316,310.70 = 16,724,983.28 : x - Step 2: Convert to fraction form
30,663,631.76/42,316,310.70 = 16,724,983.28/x - Step 3: Cross multiply
30,663,631.76x = 42,316,310.70 × 16,724,983.28 - Step 4: Simplify right side
30,663,631.76x = 707,739,588,717,203.62 - Step 5: Solve for x
x = 707,739,588,717,203.62/30,663,631.76 - Step 6: Final answer
x = 23,080,749.02
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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.