Finding the Fourth Proportional to 1,403,508,364.02, 1,936,764,810 and 768,305,975.49
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Solution
The fourth proportional to 1,403,508,364.02, 1,936,764,810 and 768,305,975.49 is: 1,060,220,241.50
Step by Step Solution
- Step 1: Write the proportion equation
1,403,508,364.02 : 1,936,764,810 = 768,305,975.49 : x - Step 2: Convert to fraction form
1,403,508,364.02/1,936,764,810 = 768,305,975.49/x - Step 3: Cross multiply
1,403,508,364.02x = 1,936,764,810 × 768,305,975.49 - Step 4: Simplify right side
1,403,508,364.02x = 1,488,027,976,641,754,624 - Step 5: Solve for x
x = 1,488,027,976,641,754,624/1,403,508,364.02 - Step 6: Final answer
x = 1,060,220,241.50
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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.