Finding the Fourth Proportional to 929,127,355.97, 1,282,229,584.47 and 505,720,567.25
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Solution
The fourth proportional to 929,127,355.97, 1,282,229,584.47 and 505,720,567.25 is: 697,912,798.11
Step by Step Solution
- Step 1: Write the proportion equation
929,127,355.97 : 1,282,229,584.47 = 505,720,567.25 : x - Step 2: Convert to fraction form
929,127,355.97/1,282,229,584.47 = 505,720,567.25/x - Step 3: Cross multiply
929,127,355.97x = 1,282,229,584.47 × 505,720,567.25 - Step 4: Simplify right side
929,127,355.97x = 648,449,872,806,105,728 - Step 5: Solve for x
x = 648,449,872,806,105,728/929,127,355.97 - Step 6: Final answer
x = 697,912,798.11
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1.5x scale
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.