Finding the Fourth Proportional to 569,519,505.12, 785,967,432.84 and 318,608,928.96
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Solution
The fourth proportional to 569,519,505.12, 785,967,432.84 and 318,608,928.96 is: 439,697,393.55
Step by Step Solution
- Step 1: Write the proportion equation
569,519,505.12 : 785,967,432.84 = 318,608,928.96 : x - Step 2: Convert to fraction form
569,519,505.12/785,967,432.84 = 318,608,928.96/x - Step 3: Cross multiply
569,519,505.12x = 785,967,432.84 × 318,608,928.96 - Step 4: Simplify right side
569,519,505.12x = 250,416,241,974,593,120 - Step 5: Solve for x
x = 250,416,241,974,593,120/569,519,505.12 - Step 6: Final answer
x = 439,697,393.55
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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.