Finding the Fourth Proportional to 13,282,732.71, 18,330,273.49 and 7,480,971.63
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Solution
The fourth proportional to 13,282,732.71, 18,330,273.49 and 7,480,971.63 is: 10,323,798.49
Step by Step Solution
- Step 1: Write the proportion equation
13,282,732.71 : 18,330,273.49 = 7,480,971.63 : x - Step 2: Convert to fraction form
13,282,732.71/18,330,273.49 = 7,480,971.63/x - Step 3: Cross multiply
13,282,732.71x = 18,330,273.49 × 7,480,971.63 - Step 4: Simplify right side
13,282,732.71x = 137,128,255,948,831.08 - Step 5: Solve for x
x = 137,128,255,948,831.08/13,282,732.71 - Step 6: Final answer
x = 10,323,798.49
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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.