Finding the Fourth Proportional to 51,980,724.15, 71,710,881.98 and 31,342,704.99
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Solution
The fourth proportional to 51,980,724.15, 71,710,881.98 and 31,342,704.99 is: 43,239,355.65
Step by Step Solution
- Step 1: Write the proportion equation
51,980,724.15 : 71,710,881.98 = 31,342,704.99 : x - Step 2: Convert to fraction form
51,980,724.15/71,710,881.98 = 31,342,704.99/x - Step 3: Cross multiply
51,980,724.15x = 71,710,881.98 × 31,342,704.99 - Step 4: Simplify right side
51,980,724.15x = 2,247,613,018,315,133.25 - Step 5: Solve for x
x = 2,247,613,018,315,133.25/51,980,724.15 - Step 6: Final answer
x = 43,239,355.65
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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.