Finding the Fourth Proportional to 528,353,465.80, 791,858,352.30 and 255,135,929.80
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Solution
The fourth proportional to 528,353,465.80, 791,858,352.30 and 255,135,929.80 is: 382,379,467.65
Step by Step Solution
- Step 1: Write the proportion equation
528,353,465.80 : 791,858,352.30 = 255,135,929.80 : x - Step 2: Convert to fraction form
528,353,465.80/791,858,352.30 = 255,135,929.80/x - Step 3: Cross multiply
528,353,465.80x = 791,858,352.30 × 255,135,929.80 - Step 4: Simplify right side
528,353,465.80x = 202,031,516,983,956,480 - Step 5: Solve for x
x = 202,031,516,983,956,480/528,353,465.80 - Step 6: Final answer
x = 382,379,467.65
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.