Finding the Fourth Proportional to 938,682,626.44, 1,295,372,503.38 and 520,998,518.92
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Solution
The fourth proportional to 938,682,626.44, 1,295,372,503.38 and 520,998,518.92 is: 718,972,671.59
Step by Step Solution
- Step 1: Write the proportion equation
938,682,626.44 : 1,295,372,503.38 = 520,998,518.92 : x - Step 2: Convert to fraction form
938,682,626.44/1,295,372,503.38 = 520,998,518.92/x - Step 3: Cross multiply
938,682,626.44x = 1,295,372,503.38 × 520,998,518.92 - Step 4: Simplify right side
938,682,626.44x = 674,887,155,710,672,768 - Step 5: Solve for x
x = 674,887,155,710,672,768/938,682,626.44 - Step 6: Final answer
x = 718,972,671.59
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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.