Finding the Fourth Proportional to 53,259,686.24, 79,894,083.20 and 18,713,085.21
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Solution
The fourth proportional to 53,259,686.24, 79,894,083.20 and 18,713,085.21 is: 28,071,227.83
Step by Step Solution
- Step 1: Write the proportion equation
53,259,686.24 : 79,894,083.20 = 18,713,085.21 : x - Step 2: Convert to fraction form
53,259,686.24/79,894,083.20 = 18,713,085.21/x - Step 3: Cross multiply
53,259,686.24x = 79,894,083.20 × 18,713,085.21 - Step 4: Simplify right side
53,259,686.24x = 1,495,064,786,602,864 - Step 5: Solve for x
x = 1,495,064,786,602,864/53,259,686.24 - Step 6: Final answer
x = 28,071,227.83
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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.