Finding the Fourth Proportional to 76,977,268.65, 106,228,624.91 and 46,037,437.02
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Solution
The fourth proportional to 76,977,268.65, 106,228,624.91 and 46,037,437.02 is: 63,531,659.60
Step by Step Solution
- Step 1: Write the proportion equation
76,977,268.65 : 106,228,624.91 = 46,037,437.02 : x - Step 2: Convert to fraction form
76,977,268.65/106,228,624.91 = 46,037,437.02/x - Step 3: Cross multiply
76,977,268.65x = 106,228,624.91 × 46,037,437.02 - Step 4: Simplify right side
76,977,268.65x = 4,890,493,628,785,141 - Step 5: Solve for x
x = 4,890,493,628,785,141/76,977,268.65 - Step 6: Final answer
x = 63,531,659.60
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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.