Finding the Fourth Proportional to 67,762,369.16, 93,505,030.09 and 39,883,416.73
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Solution
The fourth proportional to 67,762,369.16, 93,505,030.09 and 39,883,416.73 is: 55,034,971.88
Step by Step Solution
- Step 1: Write the proportion equation
67,762,369.16 : 93,505,030.09 = 39,883,416.73 : x - Step 2: Convert to fraction form
67,762,369.16/93,505,030.09 = 39,883,416.73/x - Step 3: Cross multiply
67,762,369.16x = 93,505,030.09 × 39,883,416.73 - Step 4: Simplify right side
67,762,369.16x = 3,729,300,081,430,659 - Step 5: Solve for x
x = 3,729,300,081,430,659/67,762,369.16 - Step 6: Final answer
x = 55,034,971.88
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.