Finding the Fourth Proportional to 1,421,119,658.88, 1,960,544,606.40 and 951,372,325.08
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Solution
The fourth proportional to 1,421,119,658.88, 1,960,544,606.40 and 951,372,325.08 is: 1,312,491,786.99
Step by Step Solution
- Step 1: Write the proportion equation
1,421,119,658.88 : 1,960,544,606.40 = 951,372,325.08 : x - Step 2: Convert to fraction form
1,421,119,658.88/1,960,544,606.40 = 951,372,325.08/x - Step 3: Cross multiply
1,421,119,658.88x = 1,960,544,606.40 × 951,372,325.08 - Step 4: Simplify right side
1,421,119,658.88x = 1,865,207,880,613,821,696 - Step 5: Solve for x
x = 1,865,207,880,613,821,696/1,421,119,658.88 - Step 6: Final answer
x = 1,312,491,786.99
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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.