Finding the Fourth Proportional to 29,681,707.43, 40,972,195.52 and 28,862,623.99
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Solution
The fourth proportional to 29,681,707.43, 40,972,195.52 and 28,862,623.99 is: 39,841,544.70
Step by Step Solution
- Step 1: Write the proportion equation
29,681,707.43 : 40,972,195.52 = 28,862,623.99 : x - Step 2: Convert to fraction form
29,681,707.43/40,972,195.52 = 28,862,623.99/x - Step 3: Cross multiply
29,681,707.43x = 40,972,195.52 × 28,862,623.99 - Step 4: Simplify right side
29,681,707.43x = 1,182,565,073,516,011.75 - Step 5: Solve for x
x = 1,182,565,073,516,011.75/29,681,707.43 - Step 6: Final answer
x = 39,841,544.70
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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.