Finding the Fourth Proportional to 8,124,435.98, 11,205,184.21 and 7,142,275.02
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Solution
The fourth proportional to 8,124,435.98, 11,205,184.21 and 7,142,275.02 is: 9,850,592.39
Step by Step Solution
- Step 1: Write the proportion equation
8,124,435.98 : 11,205,184.21 = 7,142,275.02 : x - Step 2: Convert to fraction form
8,124,435.98/11,205,184.21 = 7,142,275.02/x - Step 3: Cross multiply
8,124,435.98x = 11,205,184.21 × 7,142,275.02 - Step 4: Simplify right side
8,124,435.98x = 80,030,507,277,581.44 - Step 5: Solve for x
x = 80,030,507,277,581.44/8,124,435.98 - Step 6: Final answer
x = 9,850,592.39
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1.5x scale
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.