Finding the Fourth Proportional to 28,639,262.48, 42,908,767.68 and 19,511,730.50
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Solution
The fourth proportional to 28,639,262.48, 42,908,767.68 and 19,511,730.50 is: 29,233,445.23
Step by Step Solution
- Step 1: Write the proportion equation
28,639,262.48 : 42,908,767.68 = 19,511,730.50 : x - Step 2: Convert to fraction form
28,639,262.48/42,908,767.68 = 19,511,730.50/x - Step 3: Cross multiply
28,639,262.48x = 42,908,767.68 × 19,511,730.50 - Step 4: Simplify right side
28,639,262.48x = 837,224,311,059,270.25 - Step 5: Solve for x
x = 837,224,311,059,270.25/28,639,262.48 - Step 6: Final answer
x = 29,233,445.23
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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.