Finding the Fourth Proportional to 128,750,569.47, 177,680,458.17 and 73,757,054.79
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Solution
The fourth proportional to 128,750,569.47, 177,680,458.17 and 73,757,054.79 is: 101,787,412.22
Step by Step Solution
- Step 1: Write the proportion equation
128,750,569.47 : 177,680,458.17 = 73,757,054.79 : x - Step 2: Convert to fraction form
128,750,569.47/177,680,458.17 = 73,757,054.79/x - Step 3: Cross multiply
128,750,569.47x = 177,680,458.17 × 73,757,054.79 - Step 4: Simplify right side
128,750,569.47x = 13,105,187,288,356,994 - Step 5: Solve for x
x = 13,105,187,288,356,994/128,750,569.47 - Step 6: Final answer
x = 101,787,412.22
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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.