Finding the Fourth Proportional to 77,090,322.24, 115,532,735.40 and 40,690,155.60
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Solution
The fourth proportional to 77,090,322.24, 115,532,735.40 and 40,690,155.60 is: 60,981,000.52
Step by Step Solution
- Step 1: Write the proportion equation
77,090,322.24 : 115,532,735.40 = 40,690,155.60 : x - Step 2: Convert to fraction form
77,090,322.24/115,532,735.40 = 40,690,155.60/x - Step 3: Cross multiply
77,090,322.24x = 115,532,735.40 × 40,690,155.60 - Step 4: Simplify right side
77,090,322.24x = 4,701,044,980,319,629 - Step 5: Solve for x
x = 4,701,044,980,319,629/77,090,322.24 - Step 6: Final answer
x = 60,981,000.52
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.