Finding the Fourth Proportional to 127,911,881.44, 176,358,425.52 and 106,749,128.80
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Solution
The fourth proportional to 127,911,881.44, 176,358,425.52 and 106,749,128.80 is: 147,180,293.72
Step by Step Solution
- Step 1: Write the proportion equation
127,911,881.44 : 176,358,425.52 = 106,749,128.80 : x - Step 2: Convert to fraction form
127,911,881.44/176,358,425.52 = 106,749,128.80/x - Step 3: Cross multiply
127,911,881.44x = 176,358,425.52 × 106,749,128.80 - Step 4: Simplify right side
127,911,881.44x = 18,826,108,280,799,688 - Step 5: Solve for x
x = 18,826,108,280,799,688/127,911,881.44 - Step 6: Final answer
x = 147,180,293.72
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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.