Finding the Fourth Proportional to 128,858,335.41, 177,824,531.87 and 70,911,583.41
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Solution
The fourth proportional to 128,858,335.41, 177,824,531.87 and 70,911,583.41 is: 97,858,001.06
Step by Step Solution
- Step 1: Write the proportion equation
128,858,335.41 : 177,824,531.87 = 70,911,583.41 : x - Step 2: Convert to fraction form
128,858,335.41/177,824,531.87 = 70,911,583.41/x - Step 3: Cross multiply
128,858,335.41x = 177,824,531.87 × 70,911,583.41 - Step 4: Simplify right side
128,858,335.41x = 12,609,819,123,689,150 - Step 5: Solve for x
x = 12,609,819,123,689,150/128,858,335.41 - Step 6: Final answer
x = 97,858,001.06
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.