Finding the Fourth Proportional to 28,009,240.49, 38,652,920.51 and 15,620,117.18
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Solution
The fourth proportional to 28,009,240.49, 38,652,920.51 and 15,620,117.18 is: 21,555,855.75
Step by Step Solution
- Step 1: Write the proportion equation
28,009,240.49 : 38,652,920.51 = 15,620,117.18 : x - Step 2: Convert to fraction form
28,009,240.49/38,652,920.51 = 15,620,117.18/x - Step 3: Cross multiply
28,009,240.49x = 38,652,920.51 × 15,620,117.18 - Step 4: Simplify right side
28,009,240.49x = 603,763,147,444,060.25 - Step 5: Solve for x
x = 603,763,147,444,060.25/28,009,240.49 - Step 6: Final answer
x = 21,555,855.75
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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.