Finding the Fourth Proportional to 7,128,283.11, 10,681,417.14 and 4,813,703.52
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Solution
The fourth proportional to 7,128,283.11, 10,681,417.14 and 4,813,703.52 is: 7,213,121.94
Step by Step Solution
- Step 1: Write the proportion equation
7,128,283.11 : 10,681,417.14 = 4,813,703.52 : x - Step 2: Convert to fraction form
7,128,283.11/10,681,417.14 = 4,813,703.52/x - Step 3: Cross multiply
7,128,283.11x = 10,681,417.14 × 4,813,703.52 - Step 4: Simplify right side
7,128,283.11x = 51,417,175,285,406.33 - Step 5: Solve for x
x = 51,417,175,285,406.33/7,128,283.11 - Step 6: Final answer
x = 7,213,121.94
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.