Finding the Fourth Proportional to 14,361,121.68, 19,818,412.20 and 7,834,731.36
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Solution
The fourth proportional to 14,361,121.68, 19,818,412.20 and 7,834,731.36 is: 10,811,964.35
Step by Step Solution
- Step 1: Write the proportion equation
14,361,121.68 : 19,818,412.20 = 7,834,731.36 : x - Step 2: Convert to fraction form
14,361,121.68/19,818,412.20 = 7,834,731.36/x - Step 3: Cross multiply
14,361,121.68x = 19,818,412.20 × 7,834,731.36 - Step 4: Simplify right side
14,361,121.68x = 155,271,935,568,746.59 - Step 5: Solve for x
x = 155,271,935,568,746.59/14,361,121.68 - Step 6: Final answer
x = 10,811,964.35
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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.