Finding the Fourth Proportional to 13,759,814.08, 18,988,555.58 and 7,564,966.18
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Solution
The fourth proportional to 13,759,814.08, 18,988,555.58 and 7,564,966.18 is: 10,439,660.01
Step by Step Solution
- Step 1: Write the proportion equation
13,759,814.08 : 18,988,555.58 = 7,564,966.18 : x - Step 2: Convert to fraction form
13,759,814.08/18,988,555.58 = 7,564,966.18/x - Step 3: Cross multiply
13,759,814.08x = 18,988,555.58 × 7,564,966.18 - Step 4: Simplify right side
13,759,814.08x = 143,647,780,769,750.25 - Step 5: Solve for x
x = 143,647,780,769,750.25/13,759,814.08 - Step 6: Final answer
x = 10,439,660.01
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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.