Finding the Fourth Proportional to 86,201,831.80, 118,956,867.95 and 47,043,888.80
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Solution
The fourth proportional to 86,201,831.80, 118,956,867.95 and 47,043,888.80 is: 64,919,660.65
Step by Step Solution
- Step 1: Write the proportion equation
86,201,831.80 : 118,956,867.95 = 47,043,888.80 : x - Step 2: Convert to fraction form
86,201,831.80/118,956,867.95 = 47,043,888.80/x - Step 3: Cross multiply
86,201,831.80x = 118,956,867.95 × 47,043,888.80 - Step 4: Simplify right side
86,201,831.80x = 5,596,193,667,836,084 - Step 5: Solve for x
x = 5,596,193,667,836,084/86,201,831.80 - Step 6: Final answer
x = 64,919,660.65
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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.