Finding the Fourth Proportional to 13,759,810.96, 18,988,551.27 and 7,564,963.08
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Solution
The fourth proportional to 13,759,810.96, 18,988,551.27 and 7,564,963.08 is: 10,439,655.73
Step by Step Solution
- Step 1: Write the proportion equation
13,759,810.96 : 18,988,551.27 = 7,564,963.08 : x - Step 2: Convert to fraction form
13,759,810.96/18,988,551.27 = 7,564,963.08/x - Step 3: Cross multiply
13,759,810.96x = 18,988,551.27 × 7,564,963.08 - Step 4: Simplify right side
13,759,810.96x = 143,647,689,300,237.12 - Step 5: Solve for x
x = 143,647,689,300,237.12/13,759,810.96 - Step 6: Final answer
x = 10,439,655.73
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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.