Finding the Fourth Proportional to 138,971,235.84, 208,321,296.16 and 66,168,455.28
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Solution
The fourth proportional to 138,971,235.84, 208,321,296.16 and 66,168,455.28 is: 99,188,139.80
Step by Step Solution
- Step 1: Write the proportion equation
138,971,235.84 : 208,321,296.16 = 66,168,455.28 : x - Step 2: Convert to fraction form
138,971,235.84/208,321,296.16 = 66,168,455.28/x - Step 3: Cross multiply
138,971,235.84x = 208,321,296.16 × 66,168,455.28 - Step 4: Simplify right side
138,971,235.84x = 13,784,298,368,834,596 - Step 5: Solve for x
x = 13,784,298,368,834,596/138,971,235.84 - Step 6: Final answer
x = 99,188,139.80
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.