Finding the Fourth Proportional to 171,663,106.90, 257,494,660.35 and 99,103,695.70
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Solution
The fourth proportional to 171,663,106.90, 257,494,660.35 and 99,103,695.70 is: 148,655,543.55
Step by Step Solution
- Step 1: Write the proportion equation
171,663,106.90 : 257,494,660.35 = 99,103,695.70 : x - Step 2: Convert to fraction form
171,663,106.90/257,494,660.35 = 99,103,695.70/x - Step 3: Cross multiply
171,663,106.90x = 257,494,660.35 × 99,103,695.70 - Step 4: Simplify right side
171,663,106.90x = 25,518,672,463,701,256 - Step 5: Solve for x
x = 25,518,672,463,701,256/171,663,106.90 - Step 6: Final answer
x = 148,655,543.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.