Finding the Fourth Proportional to 439,971,605.70, 659,957,408.55 and 198,106,901.70
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Solution
The fourth proportional to 439,971,605.70, 659,957,408.55 and 198,106,901.70 is: 297,160,352.55
Step by Step Solution
- Step 1: Write the proportion equation
439,971,605.70 : 659,957,408.55 = 198,106,901.70 : x - Step 2: Convert to fraction form
439,971,605.70/659,957,408.55 = 198,106,901.70/x - Step 3: Cross multiply
439,971,605.70x = 659,957,408.55 × 198,106,901.70 - Step 4: Simplify right side
439,971,605.70x = 130,742,117,461,801,568 - Step 5: Solve for x
x = 130,742,117,461,801,568/439,971,605.70 - Step 6: Final answer
x = 297,160,352.55
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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.