Finding the Fourth Proportional to 70,538,330.69, 97,343,121.94 and 39,176,374.04
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Solution
The fourth proportional to 70,538,330.69, 97,343,121.94 and 39,176,374.04 is: 54,063,521.46
Step by Step Solution
- Step 1: Write the proportion equation
70,538,330.69 : 97,343,121.94 = 39,176,374.04 : x - Step 2: Convert to fraction form
70,538,330.69/97,343,121.94 = 39,176,374.04/x - Step 3: Cross multiply
70,538,330.69x = 97,343,121.94 × 39,176,374.04 - Step 4: Simplify right side
70,538,330.69x = 3,813,550,555,123,150.50 - Step 5: Solve for x
x = 3,813,550,555,123,150.50/70,538,330.69 - Step 6: Final answer
x = 54,063,521.46
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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.