Finding the Fourth Proportional to 779,307,261.18, 1,075,036,289.19 and 481,854,419.07
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Solution
The fourth proportional to 779,307,261.18, 1,075,036,289.19 and 481,854,419.07 is: 664,706,993.52
Step by Step Solution
- Step 1: Write the proportion equation
779,307,261.18 : 1,075,036,289.19 = 481,854,419.07 : x - Step 2: Convert to fraction form
779,307,261.18/1,075,036,289.19 = 481,854,419.07/x - Step 3: Cross multiply
779,307,261.18x = 1,075,036,289.19 × 481,854,419.07 - Step 4: Simplify right side
779,307,261.18x = 518,010,986,606,816,000 - Step 5: Solve for x
x = 518,010,986,606,816,000/779,307,261.18 - Step 6: Final answer
x = 664,706,993.52
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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.