Finding the Fourth Proportional to 91,412,749.64, 137,038,410.96 and 69,943,197.53
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Solution
The fourth proportional to 91,412,749.64, 137,038,410.96 and 69,943,197.53 is: 104,853,039.48
Step by Step Solution
- Step 1: Write the proportion equation
91,412,749.64 : 137,038,410.96 = 69,943,197.53 : x - Step 2: Convert to fraction form
91,412,749.64/137,038,410.96 = 69,943,197.53/x - Step 3: Cross multiply
91,412,749.64x = 137,038,410.96 × 69,943,197.53 - Step 4: Simplify right side
91,412,749.64x = 9,584,904,646,287,406 - Step 5: Solve for x
x = 9,584,904,646,287,406/91,412,749.64 - Step 6: Final answer
x = 104,853,039.48
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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.