Finding the Fourth Proportional to 20,732,371.42, 28,621,030.71 and 12,894,410.08
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Solution
The fourth proportional to 20,732,371.42, 28,621,030.71 and 12,894,410.08 is: 17,800,728.12
Step by Step Solution
- Step 1: Write the proportion equation
20,732,371.42 : 28,621,030.71 = 12,894,410.08 : x - Step 2: Convert to fraction form
20,732,371.42/28,621,030.71 = 12,894,410.08/x - Step 3: Cross multiply
20,732,371.42x = 28,621,030.71 × 12,894,410.08 - Step 4: Simplify right side
20,732,371.42x = 369,051,306,887,013.56 - Step 5: Solve for x
x = 369,051,306,887,013.56/20,732,371.42 - Step 6: Final answer
x = 17,800,728.12
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.