Finding the Fourth Proportional to 986,187,685.21, 1,360,939,739.31 and 534,069,162.12
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Solution
The fourth proportional to 986,187,685.21, 1,360,939,739.31 and 534,069,162.12 is: 737,015,841.07
Step by Step Solution
- Step 1: Write the proportion equation
986,187,685.21 : 1,360,939,739.31 = 534,069,162.12 : x - Step 2: Convert to fraction form
986,187,685.21/1,360,939,739.31 = 534,069,162.12/x - Step 3: Cross multiply
986,187,685.21x = 1,360,939,739.31 × 534,069,162.12 - Step 4: Simplify right side
986,187,685.21x = 726,835,946,269,102,848 - Step 5: Solve for x
x = 726,835,946,269,102,848/986,187,685.21 - Step 6: Final answer
x = 737,015,841.07
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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.