Finding the Fourth Proportional to 19,542,426.80, 29,299,643.40 and 8,177,025.20
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Solution
The fourth proportional to 19,542,426.80, 29,299,643.40 and 8,177,025.20 is: 12,259,681.20
Step by Step Solution
- Step 1: Write the proportion equation
19,542,426.80 : 29,299,643.40 = 8,177,025.20 : x - Step 2: Convert to fraction form
19,542,426.80/29,299,643.40 = 8,177,025.20/x - Step 3: Cross multiply
19,542,426.80x = 29,299,643.40 × 8,177,025.20 - Step 4: Simplify right side
19,542,426.80x = 239,583,922,432,813.69 - Step 5: Solve for x
x = 239,583,922,432,813.69/19,542,426.80 - Step 6: Final answer
x = 12,259,681.20
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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.