Finding the Fourth Proportional to 15,948,647.75, 22,009,135.11 and 8,705,303.75
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Solution
The fourth proportional to 15,948,647.75, 22,009,135.11 and 8,705,303.75 is: 12,013,319.84
Step by Step Solution
- Step 1: Write the proportion equation
15,948,647.75 : 22,009,135.11 = 8,705,303.75 : x - Step 2: Convert to fraction form
15,948,647.75/22,009,135.11 = 8,705,303.75/x - Step 3: Cross multiply
15,948,647.75x = 22,009,135.11 × 8,705,303.75 - Step 4: Simplify right side
15,948,647.75x = 191,596,206,407,339.66 - Step 5: Solve for x
x = 191,596,206,407,339.66/15,948,647.75 - Step 6: Final answer
x = 12,013,319.84
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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.