Finding the Fourth Proportional to 873,528,014.40, 1,310,292,021.60 and 807,015,220.80
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Solution
The fourth proportional to 873,528,014.40, 1,310,292,021.60 and 807,015,220.80 is: 1,210,522,831.20
Step by Step Solution
- Step 1: Write the proportion equation
873,528,014.40 : 1,310,292,021.60 = 807,015,220.80 : x - Step 2: Convert to fraction form
873,528,014.40/1,310,292,021.60 = 807,015,220.80/x - Step 3: Cross multiply
873,528,014.40x = 1,310,292,021.60 × 807,015,220.80 - Step 4: Simplify right side
873,528,014.40x = 1,057,425,605,124,002,176 - Step 5: Solve for x
x = 1,057,425,605,124,002,176/873,528,014.40 - Step 6: Final answer
x = 1,210,522,831.20
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Double scale
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Similar ratio
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1.5x scale
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.