Finding the Fourth Proportional to 867,966,640.75, 1,197,794,430.80 and 476,851,258.99
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Solution
The fourth proportional to 867,966,640.75, 1,197,794,430.80 and 476,851,258.99 is: 658,054,993.73
Step by Step Solution
- Step 1: Write the proportion equation
867,966,640.75 : 1,197,794,430.80 = 476,851,258.99 : x - Step 2: Convert to fraction form
867,966,640.75/1,197,794,430.80 = 476,851,258.99/x - Step 3: Cross multiply
867,966,640.75x = 1,197,794,430.80 × 476,851,258.99 - Step 4: Simplify right side
867,966,640.75x = 571,169,782,338,190,400 - Step 5: Solve for x
x = 571,169,782,338,190,400/867,966,640.75 - Step 6: Final answer
x = 658,054,993.73
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Double scale
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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.