Finding the Fourth Proportional to 127,911,877.44, 176,358,420 and 106,749,124.80
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Solution
The fourth proportional to 127,911,877.44, 176,358,420 and 106,749,124.80 is: 147,180,288.20
Step by Step Solution
- Step 1: Write the proportion equation
127,911,877.44 : 176,358,420 = 106,749,124.80 : x - Step 2: Convert to fraction form
127,911,877.44/176,358,420 = 106,749,124.80/x - Step 3: Cross multiply
127,911,877.44x = 176,358,420 × 106,749,124.80 - Step 4: Simplify right side
127,911,877.44x = 18,826,106,986,110,816 - Step 5: Solve for x
x = 18,826,106,986,110,816/127,911,877.44 - Step 6: Final answer
x = 147,180,288.20
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1.5x scale
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.