Finding the Fourth Proportional to 128,750,573.62, 177,680,463.86 and 73,757,058.94
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Solution
The fourth proportional to 128,750,573.62, 177,680,463.86 and 73,757,058.94 is: 101,787,417.93
Step by Step Solution
- Step 1: Write the proportion equation
128,750,573.62 : 177,680,463.86 = 73,757,058.94 : x - Step 2: Convert to fraction form
128,750,573.62/177,680,463.86 = 73,757,058.94/x - Step 3: Cross multiply
128,750,573.62x = 177,680,463.86 × 73,757,058.94 - Step 4: Simplify right side
128,750,573.62x = 13,105,188,445,148,752 - Step 5: Solve for x
x = 13,105,188,445,148,752/128,750,573.62 - Step 6: Final answer
x = 101,787,417.93
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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.