Finding the Fourth Proportional to 74,887,614.40, 112,331,421.60 and 62,794,379.20
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Solution
The fourth proportional to 74,887,614.40, 112,331,421.60 and 62,794,379.20 is: 94,191,568.80
Step by Step Solution
- Step 1: Write the proportion equation
74,887,614.40 : 112,331,421.60 = 62,794,379.20 : x - Step 2: Convert to fraction form
74,887,614.40/112,331,421.60 = 62,794,379.20/x - Step 3: Cross multiply
74,887,614.40x = 112,331,421.60 × 62,794,379.20 - Step 4: Simplify right side
74,887,614.40x = 7,053,781,884,025,471 - Step 5: Solve for x
x = 7,053,781,884,025,471/74,887,614.40 - Step 6: Final answer
x = 94,191,568.80
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1.5x scale
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.