Finding the Fourth Proportional to 85,667,648.24, 118,107,172.20 and 68,085,261.74
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Solution
The fourth proportional to 85,667,648.24, 118,107,172.20 and 68,085,261.74 is: 93,866,913.56
Step by Step Solution
- Step 1: Write the proportion equation
85,667,648.24 : 118,107,172.20 = 68,085,261.74 : x - Step 2: Convert to fraction form
85,667,648.24/118,107,172.20 = 68,085,261.74/x - Step 3: Cross multiply
85,667,648.24x = 118,107,172.20 × 68,085,261.74 - Step 4: Simplify right side
85,667,648.24x = 8,041,357,732,608,251 - Step 5: Solve for x
x = 8,041,357,732,608,251/85,667,648.24 - Step 6: Final answer
x = 93,866,913.56
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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.