Finding the Fourth Proportional to 28,539,840.16, 42,816,302.34 and 12,368,506.60
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Solution
The fourth proportional to 28,539,840.16, 42,816,302.34 and 12,368,506.60 is: 18,555,595.09
Step by Step Solution
- Step 1: Write the proportion equation
28,539,840.16 : 42,816,302.34 = 12,368,506.60 : x - Step 2: Convert to fraction form
28,539,840.16/42,816,302.34 = 12,368,506.60/x - Step 3: Cross multiply
28,539,840.16x = 42,816,302.34 × 12,368,506.60 - Step 4: Simplify right side
28,539,840.16x = 529,573,718,079,885.50 - Step 5: Solve for x
x = 529,573,718,079,885.50/28,539,840.16 - Step 6: Final answer
x = 18,555,595.09
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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.