Finding the Fourth Proportional to 535,886,438.40, 803,829,657.60 and 531,351,475.20
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Solution
The fourth proportional to 535,886,438.40, 803,829,657.60 and 531,351,475.20 is: 797,027,212.80
Step by Step Solution
- Step 1: Write the proportion equation
535,886,438.40 : 803,829,657.60 = 531,351,475.20 : x - Step 2: Convert to fraction form
535,886,438.40/803,829,657.60 = 531,351,475.20/x - Step 3: Cross multiply
535,886,438.40x = 803,829,657.60 × 531,351,475.20 - Step 4: Simplify right side
535,886,438.40x = 427,116,074,375,270,912 - Step 5: Solve for x
x = 427,116,074,375,270,912/535,886,438.40 - Step 6: Final answer
x = 797,027,212.80
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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.