Finding the Fourth Proportional to 5,101,928.96, 7,040,981.12 and 2,810,089.12
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Solution
The fourth proportional to 5,101,928.96, 7,040,981.12 and 2,810,089.12 is: 3,878,098.77
Step by Step Solution
- Step 1: Write the proportion equation
5,101,928.96 : 7,040,981.12 = 2,810,089.12 : x - Step 2: Convert to fraction form
5,101,928.96/7,040,981.12 = 2,810,089.12/x - Step 3: Cross multiply
5,101,928.96x = 7,040,981.12 × 2,810,089.12 - Step 4: Simplify right side
5,101,928.96x = 19,785,784,439,437.41 - Step 5: Solve for x
x = 19,785,784,439,437.41/5,101,928.96 - Step 6: Final answer
x = 3,878,098.77
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1.5x scale
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.