Finding the Fourth Proportional to 919,329,220.40, 1,378,993,830.60 and 804,537,964.40
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Solution
The fourth proportional to 919,329,220.40, 1,378,993,830.60 and 804,537,964.40 is: 1,206,806,946.60
Step by Step Solution
- Step 1: Write the proportion equation
919,329,220.40 : 1,378,993,830.60 = 804,537,964.40 : x - Step 2: Convert to fraction form
919,329,220.40/1,378,993,830.60 = 804,537,964.40/x - Step 3: Cross multiply
919,329,220.40x = 1,378,993,830.60 × 804,537,964.40 - Step 4: Simplify right side
919,329,220.40x = 1,109,452,889,391,082,368 - Step 5: Solve for x
x = 1,109,452,889,391,082,368/919,329,220.40 - Step 6: Final answer
x = 1,206,806,946.60
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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.