Finding the Fourth Proportional to 70,124,073.87, 96,769,365.35 and 39,184,497.39
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Solution
The fourth proportional to 70,124,073.87, 96,769,365.35 and 39,184,497.39 is: 54,073,568.95
Step by Step Solution
- Step 1: Write the proportion equation
70,124,073.87 : 96,769,365.35 = 39,184,497.39 : x - Step 2: Convert to fraction form
70,124,073.87/96,769,365.35 = 39,184,497.39/x - Step 3: Cross multiply
70,124,073.87x = 96,769,365.35 × 39,184,497.39 - Step 4: Simplify right side
70,124,073.87x = 3,791,858,943,793,109 - Step 5: Solve for x
x = 3,791,858,943,793,109/70,124,073.87 - Step 6: Final answer
x = 54,073,568.95
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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.