Finding the Fourth Proportional to 28,689,530,258.72, 39,604,248,718.38 and 18,533,211,323.99
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Solution
The fourth proportional to 28,689,530,258.72, 39,604,248,718.38 and 18,533,211,323.99 is: 25,584,033,764.46
Step by Step Solution
- Step 1: Write the proportion equation
28,689,530,258.72 : 39,604,248,718.38 = 18,533,211,323.99 : x - Step 2: Convert to fraction form
28,689,530,258.72/39,604,248,718.38 = 18,533,211,323.99/x - Step 3: Cross multiply
28,689,530,258.72x = 39,604,248,718.38 × 18,533,211,323.99 - Step 4: Simplify right side
28,689,530,258.72x = 733,993,910,825,596,616,704 - Step 5: Solve for x
x = 733,993,910,825,596,616,704/28,689,530,258.72 - Step 6: Final answer
x = 25,584,033,764.46
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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.