Finding the Fourth Proportional to 1,310,536,090.76, 1,965,811,484.96 and 437,135,061.40
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Solution
The fourth proportional to 1,310,536,090.76, 1,965,811,484.96 and 437,135,061.40 is: 655,705,043.33
Step by Step Solution
- Step 1: Write the proportion equation
1,310,536,090.76 : 1,965,811,484.96 = 437,135,061.40 : x - Step 2: Convert to fraction form
1,310,536,090.76/1,965,811,484.96 = 437,135,061.40/x - Step 3: Cross multiply
1,310,536,090.76x = 1,965,811,484.96 × 437,135,061.40 - Step 4: Simplify right side
1,310,536,090.76x = 859,325,124,178,814,720 - Step 5: Solve for x
x = 859,325,124,178,814,720/1,310,536,090.76 - Step 6: Final answer
x = 655,705,043.33
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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.