Finding the Fourth Proportional to 28,959,341.14, 39,970,851.06 and 16,576,612.75
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Solution
The fourth proportional to 28,959,341.14, 39,970,851.06 and 16,576,612.75 is: 22,879,709.73
Step by Step Solution
- Step 1: Write the proportion equation
28,959,341.14 : 39,970,851.06 = 16,576,612.75 : x - Step 2: Convert to fraction form
28,959,341.14/39,970,851.06 = 16,576,612.75/x - Step 3: Cross multiply
28,959,341.14x = 39,970,851.06 × 16,576,612.75 - Step 4: Simplify right side
28,959,341.14x = 662,581,319,309,547 - Step 5: Solve for x
x = 662,581,319,309,547/28,959,341.14 - Step 6: Final answer
x = 22,879,709.73
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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.