Finding the Fourth Proportional to 1,473,153,687.21, 2,209,709,718.09 and 685,766,944.24
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Solution
The fourth proportional to 1,473,153,687.21, 2,209,709,718.09 and 685,766,944.24 is: 1,028,640,727.84
Step by Step Solution
- Step 1: Write the proportion equation
1,473,153,687.21 : 2,209,709,718.09 = 685,766,944.24 : x - Step 2: Convert to fraction form
1,473,153,687.21/2,209,709,718.09 = 685,766,944.24/x - Step 3: Cross multiply
1,473,153,687.21x = 2,209,709,718.09 × 685,766,944.24 - Step 4: Simplify right side
1,473,153,687.21x = 1,515,345,881,032,011,264 - Step 5: Solve for x
x = 1,515,345,881,032,011,264/1,473,153,687.21 - Step 6: Final answer
x = 1,028,640,727.84
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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.