Finding the Fourth Proportional to 2,928,362,141.28, 4,392,539,502.48 and 747,328,326.24
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Solution
The fourth proportional to 2,928,362,141.28, 4,392,539,502.48 and 747,328,326.24 is: 1,120,991,542.70
Step by Step Solution
- Step 1: Write the proportion equation
2,928,362,141.28 : 4,392,539,502.48 = 747,328,326.24 : x - Step 2: Convert to fraction form
2,928,362,141.28/4,392,539,502.48 = 747,328,326.24/x - Step 3: Cross multiply
2,928,362,141.28x = 4,392,539,502.48 × 747,328,326.24 - Step 4: Simplify right side
2,928,362,141.28x = 3,282,669,194,331,460,608 - Step 5: Solve for x
x = 3,282,669,194,331,460,608/2,928,362,141.28 - Step 6: Final answer
x = 1,120,991,542.70
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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.