Finding the Fourth Proportional to 132,887,639.80, 199,331,459.70 and 97,055,831.80
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Solution
The fourth proportional to 132,887,639.80, 199,331,459.70 and 97,055,831.80 is: 145,583,747.70
Step by Step Solution
- Step 1: Write the proportion equation
132,887,639.80 : 199,331,459.70 = 97,055,831.80 : x - Step 2: Convert to fraction form
132,887,639.80/199,331,459.70 = 97,055,831.80/x - Step 3: Cross multiply
132,887,639.80x = 199,331,459.70 × 97,055,831.80 - Step 4: Simplify right side
132,887,639.80x = 19,346,280,625,091,676 - Step 5: Solve for x
x = 19,346,280,625,091,676/132,887,639.80 - Step 6: Final answer
x = 145,583,747.70
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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.