Finding the Fourth Proportional to 85,740,394.43, 128,610,691.98 and 23,492,235.84
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Solution
The fourth proportional to 85,740,394.43, 128,610,691.98 and 23,492,235.84 is: 35,238,381.25
Step by Step Solution
- Step 1: Write the proportion equation
85,740,394.43 : 128,610,691.98 = 23,492,235.84 : x - Step 2: Convert to fraction form
85,740,394.43/128,610,691.98 = 23,492,235.84/x - Step 3: Cross multiply
85,740,394.43x = 128,610,691.98 × 23,492,235.84 - Step 4: Simplify right side
85,740,394.43x = 3,021,352,707,422,295 - Step 5: Solve for x
x = 3,021,352,707,422,295/85,740,394.43 - Step 6: Final answer
x = 35,238,381.25
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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.