Finding the Fourth Proportional to 40,590,648.21, 60,885,971.14 and 18,724,557.99
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Solution
The fourth proportional to 40,590,648.21, 60,885,971.14 and 18,724,557.99 is: 28,086,836.44
Step by Step Solution
- Step 1: Write the proportion equation
40,590,648.21 : 60,885,971.14 = 18,724,557.99 : x - Step 2: Convert to fraction form
40,590,648.21/60,885,971.14 = 18,724,557.99/x - Step 3: Cross multiply
40,590,648.21x = 60,885,971.14 × 18,724,557.99 - Step 4: Simplify right side
40,590,648.21x = 1,140,062,897,282,993 - Step 5: Solve for x
x = 1,140,062,897,282,993/40,590,648.21 - Step 6: Final answer
x = 28,086,836.44
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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.