Finding the Fourth Proportional to 91,868,686.43, 137,829,933.63 and 27,174,214.31
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Solution
The fourth proportional to 91,868,686.43, 137,829,933.63 and 27,174,214.31 is: 40,769,279.51
Step by Step Solution
- Step 1: Write the proportion equation
91,868,686.43 : 137,829,933.63 = 27,174,214.31 : x - Step 2: Convert to fraction form
91,868,686.43/137,829,933.63 = 27,174,214.31/x - Step 3: Cross multiply
91,868,686.43x = 137,829,933.63 × 27,174,214.31 - Step 4: Simplify right side
91,868,686.43x = 3,745,420,155,139,271 - Step 5: Solve for x
x = 3,745,420,155,139,271/91,868,686.43 - Step 6: Final answer
x = 40,769,279.51
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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.