Finding the Fourth Proportional to 742,674,403.80, 1,114,011,605.70 and 197,415,937.80
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Solution
The fourth proportional to 742,674,403.80, 1,114,011,605.70 and 197,415,937.80 is: 296,123,906.70
Step by Step Solution
- Step 1: Write the proportion equation
742,674,403.80 : 1,114,011,605.70 = 197,415,937.80 : x - Step 2: Convert to fraction form
742,674,403.80/1,114,011,605.70 = 197,415,937.80/x - Step 3: Cross multiply
742,674,403.80x = 1,114,011,605.70 × 197,415,937.80 - Step 4: Simplify right side
742,674,403.80x = 219,923,645,859,349,344 - Step 5: Solve for x
x = 219,923,645,859,349,344/742,674,403.80 - Step 6: Final answer
x = 296,123,906.70
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Similar ratio
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1.5x scale
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.