Finding the Fourth Proportional to 912,528,064.40, 1,368,792,096.60 and 880,279,437.20
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Solution
The fourth proportional to 912,528,064.40, 1,368,792,096.60 and 880,279,437.20 is: 1,320,419,155.80
Step by Step Solution
- Step 1: Write the proportion equation
912,528,064.40 : 1,368,792,096.60 = 880,279,437.20 : x - Step 2: Convert to fraction form
912,528,064.40/1,368,792,096.60 = 880,279,437.20/x - Step 3: Cross multiply
912,528,064.40x = 1,368,792,096.60 × 880,279,437.20 - Step 4: Simplify right side
912,528,064.40x = 1,204,919,536,438,855,936 - Step 5: Solve for x
x = 1,204,919,536,438,855,936/912,528,064.40 - Step 6: Final answer
x = 1,320,419,155.80
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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.