Finding the Fourth Proportional to 28,117,794.60, 42,161,526.18 and 12,756,702.42
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Solution
The fourth proportional to 28,117,794.60, 42,161,526.18 and 12,756,702.42 is: 19,128,173.13
Step by Step Solution
- Step 1: Write the proportion equation
28,117,794.60 : 42,161,526.18 = 12,756,702.42 : x - Step 2: Convert to fraction form
28,117,794.60/42,161,526.18 = 12,756,702.42/x - Step 3: Cross multiply
28,117,794.60x = 42,161,526.18 × 12,756,702.42 - Step 4: Simplify right side
28,117,794.60x = 537,842,043,051,299.38 - Step 5: Solve for x
x = 537,842,043,051,299.38/28,117,794.60 - Step 6: Final answer
x = 19,128,173.13
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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.