Finding the Fourth Proportional to 7,435,896.12, 10,261,619.28 and 4,128,415.74
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Solution
The fourth proportional to 7,435,896.12, 10,261,619.28 and 4,128,415.74 is: 5,697,259.60
Step by Step Solution
- Step 1: Write the proportion equation
7,435,896.12 : 10,261,619.28 = 4,128,415.74 : x - Step 2: Convert to fraction form
7,435,896.12/10,261,619.28 = 4,128,415.74/x - Step 3: Cross multiply
7,435,896.12x = 10,261,619.28 × 4,128,415.74 - Step 4: Simplify right side
7,435,896.12x = 42,364,230,553,439.47 - Step 5: Solve for x
x = 42,364,230,553,439.47/7,435,896.12 - Step 6: Final answer
x = 5,697,259.60
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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.