Finding the Fourth Proportional to 1,303,747,771.70, 1,955,621,657.55 and 997,637,755.70
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Solution
The fourth proportional to 1,303,747,771.70, 1,955,621,657.55 and 997,637,755.70 is: 1,496,456,633.55
Step by Step Solution
- Step 1: Write the proportion equation
1,303,747,771.70 : 1,955,621,657.55 = 997,637,755.70 : x - Step 2: Convert to fraction form
1,303,747,771.70/1,955,621,657.55 = 997,637,755.70/x - Step 3: Cross multiply
1,303,747,771.70x = 1,955,621,657.55 × 997,637,755.70 - Step 4: Simplify right side
1,303,747,771.70x = 1,951,002,001,436,496,128 - Step 5: Solve for x
x = 1,951,002,001,436,496,128/1,303,747,771.70 - Step 6: Final answer
x = 1,496,456,633.55
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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.