Finding the Fourth Proportional to 85,721,362.84, 118,295,390.82 and 46,563,170.68
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Solution
The fourth proportional to 85,721,362.84, 118,295,390.82 and 46,563,170.68 is: 64,257,126.71
Step by Step Solution
- Step 1: Write the proportion equation
85,721,362.84 : 118,295,390.82 = 46,563,170.68 : x - Step 2: Convert to fraction form
85,721,362.84/118,295,390.82 = 46,563,170.68/x - Step 3: Cross multiply
85,721,362.84x = 118,295,390.82 × 46,563,170.68 - Step 4: Simplify right side
85,721,362.84x = 5,508,208,473,408,965 - Step 5: Solve for x
x = 5,508,208,473,408,965/85,721,362.84 - Step 6: Final answer
x = 64,257,126.71
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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.