Finding the Fourth Proportional to 85,782,456.68, 118,380,988.69 and 46,624,221.68
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Solution
The fourth proportional to 85,782,456.68, 118,380,988.69 and 46,624,221.68 is: 64,342,077.30
Step by Step Solution
- Step 1: Write the proportion equation
85,782,456.68 : 118,380,988.69 = 46,624,221.68 : x - Step 2: Convert to fraction form
85,782,456.68/118,380,988.69 = 46,624,221.68/x - Step 3: Cross multiply
85,782,456.68x = 118,380,988.69 × 46,624,221.68 - Step 4: Simplify right side
85,782,456.68x = 5,519,421,458,671,667 - Step 5: Solve for x
x = 5,519,421,458,671,667/85,782,456.68 - Step 6: Final answer
x = 64,342,077.30
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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.