Finding the Fourth Proportional to 42,701,881.20, 63,965,730.60 and 26,478,034.80
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Solution
The fourth proportional to 42,701,881.20, 63,965,730.60 and 26,478,034.80 is: 39,663,049.81
Step by Step Solution
- Step 1: Write the proportion equation
42,701,881.20 : 63,965,730.60 = 26,478,034.80 : x - Step 2: Convert to fraction form
42,701,881.20/63,965,730.60 = 26,478,034.80/x - Step 3: Cross multiply
42,701,881.20x = 63,965,730.60 × 26,478,034.80 - Step 4: Simplify right side
42,701,881.20x = 1,693,686,840,834,225 - Step 5: Solve for x
x = 1,693,686,840,834,225/42,701,881.20 - Step 6: Final answer
x = 39,663,049.81
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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.