Finding the Fourth Proportional to 15,336,733,588.72, 21,163,080,034.18 and 8,905,296,386.74
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Solution
The fourth proportional to 15,336,733,588.72, 21,163,080,034.18 and 8,905,296,386.74 is: 12,288,372,818.79
Step by Step Solution
- Step 1: Write the proportion equation
15,336,733,588.72 : 21,163,080,034.18 = 8,905,296,386.74 : x - Step 2: Convert to fraction form
15,336,733,588.72/21,163,080,034.18 = 8,905,296,386.74/x - Step 3: Cross multiply
15,336,733,588.72x = 21,163,080,034.18 × 8,905,296,386.74 - Step 4: Simplify right side
15,336,733,588.72x = 188,463,500,160,672,595,968 - Step 5: Solve for x
x = 188,463,500,160,672,595,968/15,336,733,588.72 - Step 6: Final answer
x = 12,288,372,818.79
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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.