Finding the Fourth Proportional to 83,989,643.52, 125,972,501.76 and 26,474,440.32
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Solution
The fourth proportional to 83,989,643.52, 125,972,501.76 and 26,474,440.32 is: 39,707,889.45
Step by Step Solution
- Step 1: Write the proportion equation
83,989,643.52 : 125,972,501.76 = 26,474,440.32 : x - Step 2: Convert to fraction form
83,989,643.52/125,972,501.76 = 26,474,440.32/x - Step 3: Cross multiply
83,989,643.52x = 125,972,501.76 × 26,474,440.32 - Step 4: Simplify right side
83,989,643.52x = 3,335,051,479,806,215 - Step 5: Solve for x
x = 3,335,051,479,806,215/83,989,643.52 - Step 6: Final answer
x = 39,707,889.45
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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.