Finding the Fourth Proportional to 74,342,329.62, 102,586,400.14 and 42,982,390.64
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Solution
The fourth proportional to 74,342,329.62, 102,586,400.14 and 42,982,390.64 is: 59,312,221.55
Step by Step Solution
- Step 1: Write the proportion equation
74,342,329.62 : 102,586,400.14 = 42,982,390.64 : x - Step 2: Convert to fraction form
74,342,329.62/102,586,400.14 = 42,982,390.64/x - Step 3: Cross multiply
74,342,329.62x = 102,586,400.14 × 42,982,390.64 - Step 4: Simplify right side
74,342,329.62x = 4,409,408,725,168,831 - Step 5: Solve for x
x = 4,409,408,725,168,831/74,342,329.62 - Step 6: Final answer
x = 59,312,221.55
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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.