Finding the Fourth Proportional to 14,434,406.60, 19,919,315.12 and 7,818,868.79
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Solution
The fourth proportional to 14,434,406.60, 19,919,315.12 and 7,818,868.79 is: 10,789,949.01
Step by Step Solution
- Step 1: Write the proportion equation
14,434,406.60 : 19,919,315.12 = 7,818,868.79 : x - Step 2: Convert to fraction form
14,434,406.60/19,919,315.12 = 7,818,868.79/x - Step 3: Cross multiply
14,434,406.60x = 19,919,315.12 × 7,818,868.79 - Step 4: Simplify right side
14,434,406.60x = 155,746,511,171,252.19 - Step 5: Solve for x
x = 155,746,511,171,252.19/14,434,406.60 - Step 6: Final answer
x = 10,789,949.01
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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.