Finding the Fourth Proportional to 208,049,855, 286,999,949.02 and 128,639,532
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Solution
The fourth proportional to 208,049,855, 286,999,949.02 and 128,639,532 is: 177,455,250.45
Step by Step Solution
- Step 1: Write the proportion equation
208,049,855 : 286,999,949.02 = 128,639,532 : x - Step 2: Convert to fraction form
208,049,855/286,999,949.02 = 128,639,532/x - Step 3: Cross multiply
208,049,855x = 286,999,949.02 × 128,639,532 - Step 4: Simplify right side
208,049,855x = 36,919,539,125,956,656 - Step 5: Solve for x
x = 36,919,539,125,956,656/208,049,855 - Step 6: Final answer
x = 177,455,250.45
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.