Finding the Fourth Proportional to 208,049,854, 286,999,947.64 and 128,639,531
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Solution
The fourth proportional to 208,049,854, 286,999,947.64 and 128,639,531 is: 177,455,249.07
Step by Step Solution
- Step 1: Write the proportion equation
208,049,854 : 286,999,947.64 = 128,639,531 : x - Step 2: Convert to fraction form
208,049,854/286,999,947.64 = 128,639,531/x - Step 3: Cross multiply
208,049,854x = 286,999,947.64 × 128,639,531 - Step 4: Simplify right side
208,049,854x = 36,919,538,661,434,152 - Step 5: Solve for x
x = 36,919,538,661,434,152/208,049,854 - Step 6: Final answer
x = 177,455,249.07
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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.