Finding the Fourth Proportional to 3,970,038.21, 5,478,641.31 and 2,204,206.08
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Solution
The fourth proportional to 3,970,038.21, 5,478,641.31 and 2,204,206.08 is: 3,041,798.05
Step by Step Solution
- Step 1: Write the proportion equation
3,970,038.21 : 5,478,641.31 = 2,204,206.08 : x - Step 2: Convert to fraction form
3,970,038.21/5,478,641.31 = 2,204,206.08/x - Step 3: Cross multiply
3,970,038.21x = 5,478,641.31 × 2,204,206.08 - Step 4: Simplify right side
3,970,038.21x = 12,076,054,485,641.16 - Step 5: Solve for x
x = 12,076,054,485,641.16/3,970,038.21 - Step 6: Final answer
x = 3,041,798.05
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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.